Index: node_modules/fraction.js/src/fraction.js
===================================================================
--- node_modules/fraction.js/src/fraction.js	(revision 2058e5c694bb6097866a5fe6503c519e8f74970f)
+++ node_modules/fraction.js/src/fraction.js	(revision 2058e5c694bb6097866a5fe6503c519e8f74970f)
@@ -0,0 +1,1046 @@
+/**
+ * @license Fraction.js v5.3.4 8/22/2025
+ * https://raw.org/article/rational-numbers-in-javascript/
+ *
+ * Copyright (c) 2025, Robert Eisele (https://raw.org/)
+ * Licensed under the MIT license.
+ **/
+
+/**
+ *
+ * This class offers the possibility to calculate fractions.
+ * You can pass a fraction in different formats. Either as array, as double, as string or as an integer.
+ *
+ * Array/Object form
+ * [ 0 => <numerator>, 1 => <denominator> ]
+ * { n => <numerator>, d => <denominator> }
+ *
+ * Integer form
+ * - Single integer value as BigInt or Number
+ *
+ * Double form
+ * - Single double value as Number
+ *
+ * String form
+ * 123.456 - a simple double
+ * 123/456 - a string fraction
+ * 123.'456' - a double with repeating decimal places
+ * 123.(456) - synonym
+ * 123.45'6' - a double with repeating last place
+ * 123.45(6) - synonym
+ *
+ * Example:
+ * let f = new Fraction("9.4'31'");
+ * f.mul([-4, 3]).div(4.9);
+ *
+ */
+
+// Set Identity function to downgrade BigInt to Number if needed
+if (typeof BigInt === 'undefined') BigInt = function (n) { if (isNaN(n)) throw new Error(""); return n; };
+
+const C_ZERO = BigInt(0);
+const C_ONE = BigInt(1);
+const C_TWO = BigInt(2);
+const C_THREE = BigInt(3);
+const C_FIVE = BigInt(5);
+const C_TEN = BigInt(10);
+const MAX_INTEGER = BigInt(Number.MAX_SAFE_INTEGER);
+
+// Maximum search depth for cyclic rational numbers. 2000 should be more than enough.
+// Example: 1/7 = 0.(142857) has 6 repeating decimal places.
+// If MAX_CYCLE_LEN gets reduced, long cycles will not be detected and toString() only gets the first 10 digits
+const MAX_CYCLE_LEN = 2000;
+
+// Parsed data to avoid calling "new" all the time
+const P = {
+  "s": C_ONE,
+  "n": C_ZERO,
+  "d": C_ONE
+};
+
+function assign(n, s) {
+
+  try {
+    n = BigInt(n);
+  } catch (e) {
+    throw InvalidParameter();
+  }
+  return n * s;
+}
+
+function ifloor(x) {
+  return typeof x === 'bigint' ? x : Math.floor(x);
+}
+
+// Creates a new Fraction internally without the need of the bulky constructor
+function newFraction(n, d) {
+
+  if (d === C_ZERO) {
+    throw DivisionByZero();
+  }
+
+  const f = Object.create(Fraction.prototype);
+  f["s"] = n < C_ZERO ? -C_ONE : C_ONE;
+
+  n = n < C_ZERO ? -n : n;
+
+  const a = gcd(n, d);
+
+  f["n"] = n / a;
+  f["d"] = d / a;
+  return f;
+}
+
+const FACTORSTEPS = [C_TWO * C_TWO, C_TWO, C_TWO * C_TWO, C_TWO, C_TWO * C_TWO, C_TWO * C_THREE, C_TWO, C_TWO * C_THREE]; // repeats
+function factorize(n) {
+
+  const factors = Object.create(null);
+  if (n <= C_ONE) {
+    factors[n] = C_ONE;
+    return factors;
+  }
+
+  const add = (p) => { factors[p] = (factors[p] || C_ZERO) + C_ONE; };
+
+  while (n % C_TWO === C_ZERO) { add(C_TWO); n /= C_TWO; }
+  while (n % C_THREE === C_ZERO) { add(C_THREE); n /= C_THREE; }
+  while (n % C_FIVE === C_ZERO) { add(C_FIVE); n /= C_FIVE; }
+
+  // 30-wheel trial division: test only residues coprime to 2*3*5
+  // Residue step pattern after 5: 7,11,13,17,19,23,29,31, ...
+  for (let si = 0, p = C_TWO + C_FIVE; p * p <= n;) {
+    while (n % p === C_ZERO) { add(p); n /= p; }
+    p += FACTORSTEPS[si];
+    si = (si + 1) & 7; // fast modulo 8
+  }
+  if (n > C_ONE) add(n);
+  return factors;
+}
+
+const parse = function (p1, p2) {
+
+  let n = C_ZERO, d = C_ONE, s = C_ONE;
+
+  if (p1 === undefined || p1 === null) { // No argument
+    /* void */
+  } else if (p2 !== undefined) { // Two arguments
+
+    if (typeof p1 === "bigint") {
+      n = p1;
+    } else if (isNaN(p1)) {
+      throw InvalidParameter();
+    } else if (p1 % 1 !== 0) {
+      throw NonIntegerParameter();
+    } else {
+      n = BigInt(p1);
+    }
+
+    if (typeof p2 === "bigint") {
+      d = p2;
+    } else if (isNaN(p2)) {
+      throw InvalidParameter();
+    } else if (p2 % 1 !== 0) {
+      throw NonIntegerParameter();
+    } else {
+      d = BigInt(p2);
+    }
+
+    s = n * d;
+
+  } else if (typeof p1 === "object") {
+    if ("d" in p1 && "n" in p1) {
+      n = BigInt(p1["n"]);
+      d = BigInt(p1["d"]);
+      if ("s" in p1)
+        n *= BigInt(p1["s"]);
+    } else if (0 in p1) {
+      n = BigInt(p1[0]);
+      if (1 in p1)
+        d = BigInt(p1[1]);
+    } else if (typeof p1 === "bigint") {
+      n = p1;
+    } else {
+      throw InvalidParameter();
+    }
+    s = n * d;
+  } else if (typeof p1 === "number") {
+
+    if (isNaN(p1)) {
+      throw InvalidParameter();
+    }
+
+    if (p1 < 0) {
+      s = -C_ONE;
+      p1 = -p1;
+    }
+
+    if (p1 % 1 === 0) {
+      n = BigInt(p1);
+    } else {
+
+      let z = 1;
+
+      let A = 0, B = 1;
+      let C = 1, D = 1;
+
+      let N = 10000000;
+
+      if (p1 >= 1) {
+        z = 10 ** Math.floor(1 + Math.log10(p1));
+        p1 /= z;
+      }
+
+      // Using Farey Sequences
+
+      while (B <= N && D <= N) {
+        let M = (A + C) / (B + D);
+
+        if (p1 === M) {
+          if (B + D <= N) {
+            n = A + C;
+            d = B + D;
+          } else if (D > B) {
+            n = C;
+            d = D;
+          } else {
+            n = A;
+            d = B;
+          }
+          break;
+
+        } else {
+
+          if (p1 > M) {
+            A += C;
+            B += D;
+          } else {
+            C += A;
+            D += B;
+          }
+
+          if (B > N) {
+            n = C;
+            d = D;
+          } else {
+            n = A;
+            d = B;
+          }
+        }
+      }
+      n = BigInt(n) * BigInt(z);
+      d = BigInt(d);
+    }
+
+  } else if (typeof p1 === "string") {
+
+    let ndx = 0;
+
+    let v = C_ZERO, w = C_ZERO, x = C_ZERO, y = C_ONE, z = C_ONE;
+
+    let match = p1.replace(/_/g, '').match(/\d+|./g);
+
+    if (match === null)
+      throw InvalidParameter();
+
+    if (match[ndx] === '-') {// Check for minus sign at the beginning
+      s = -C_ONE;
+      ndx++;
+    } else if (match[ndx] === '+') {// Check for plus sign at the beginning
+      ndx++;
+    }
+
+    if (match.length === ndx + 1) { // Check if it's just a simple number "1234"
+      w = assign(match[ndx++], s);
+    } else if (match[ndx + 1] === '.' || match[ndx] === '.') { // Check if it's a decimal number
+
+      if (match[ndx] !== '.') { // Handle 0.5 and .5
+        v = assign(match[ndx++], s);
+      }
+      ndx++;
+
+      // Check for decimal places
+      if (ndx + 1 === match.length || match[ndx + 1] === '(' && match[ndx + 3] === ')' || match[ndx + 1] === "'" && match[ndx + 3] === "'") {
+        w = assign(match[ndx], s);
+        y = C_TEN ** BigInt(match[ndx].length);
+        ndx++;
+      }
+
+      // Check for repeating places
+      if (match[ndx] === '(' && match[ndx + 2] === ')' || match[ndx] === "'" && match[ndx + 2] === "'") {
+        x = assign(match[ndx + 1], s);
+        z = C_TEN ** BigInt(match[ndx + 1].length) - C_ONE;
+        ndx += 3;
+      }
+
+    } else if (match[ndx + 1] === '/' || match[ndx + 1] === ':') { // Check for a simple fraction "123/456" or "123:456"
+      w = assign(match[ndx], s);
+      y = assign(match[ndx + 2], C_ONE);
+      ndx += 3;
+    } else if (match[ndx + 3] === '/' && match[ndx + 1] === ' ') { // Check for a complex fraction "123 1/2"
+      v = assign(match[ndx], s);
+      w = assign(match[ndx + 2], s);
+      y = assign(match[ndx + 4], C_ONE);
+      ndx += 5;
+    }
+
+    if (match.length <= ndx) { // Check for more tokens on the stack
+      d = y * z;
+      s = /* void */
+        n = x + d * v + z * w;
+    } else {
+      throw InvalidParameter();
+    }
+
+  } else if (typeof p1 === "bigint") {
+    n = p1;
+    s = p1;
+    d = C_ONE;
+  } else {
+    throw InvalidParameter();
+  }
+
+  if (d === C_ZERO) {
+    throw DivisionByZero();
+  }
+
+  P["s"] = s < C_ZERO ? -C_ONE : C_ONE;
+  P["n"] = n < C_ZERO ? -n : n;
+  P["d"] = d < C_ZERO ? -d : d;
+};
+
+function modpow(b, e, m) {
+
+  let r = C_ONE;
+  for (; e > C_ZERO; b = (b * b) % m, e >>= C_ONE) {
+
+    if (e & C_ONE) {
+      r = (r * b) % m;
+    }
+  }
+  return r;
+}
+
+function cycleLen(n, d) {
+
+  for (; d % C_TWO === C_ZERO;
+    d /= C_TWO) {
+  }
+
+  for (; d % C_FIVE === C_ZERO;
+    d /= C_FIVE) {
+  }
+
+  if (d === C_ONE) // Catch non-cyclic numbers
+    return C_ZERO;
+
+  // If we would like to compute really large numbers quicker, we could make use of Fermat's little theorem:
+  // 10^(d-1) % d == 1
+  // However, we don't need such large numbers and MAX_CYCLE_LEN should be the capstone,
+  // as we want to translate the numbers to strings.
+
+  let rem = C_TEN % d;
+  let t = 1;
+
+  for (; rem !== C_ONE; t++) {
+    rem = rem * C_TEN % d;
+
+    if (t > MAX_CYCLE_LEN)
+      return C_ZERO; // Returning 0 here means that we don't print it as a cyclic number. It's likely that the answer is `d-1`
+  }
+  return BigInt(t);
+}
+
+function cycleStart(n, d, len) {
+
+  let rem1 = C_ONE;
+  let rem2 = modpow(C_TEN, len, d);
+
+  for (let t = 0; t < 300; t++) { // s < ~log10(Number.MAX_VALUE)
+    // Solve 10^s == 10^(s+t) (mod d)
+
+    if (rem1 === rem2)
+      return BigInt(t);
+
+    rem1 = rem1 * C_TEN % d;
+    rem2 = rem2 * C_TEN % d;
+  }
+  return 0;
+}
+
+function gcd(a, b) {
+
+  if (!a)
+    return b;
+  if (!b)
+    return a;
+
+  while (1) {
+    a %= b;
+    if (!a)
+      return b;
+    b %= a;
+    if (!b)
+      return a;
+  }
+}
+
+/**
+ * Module constructor
+ *
+ * @constructor
+ * @param {number|Fraction=} a
+ * @param {number=} b
+ */
+function Fraction(a, b) {
+
+  parse(a, b);
+
+  if (this instanceof Fraction) {
+    a = gcd(P["d"], P["n"]); // Abuse a
+    this["s"] = P["s"];
+    this["n"] = P["n"] / a;
+    this["d"] = P["d"] / a;
+  } else {
+    return newFraction(P['s'] * P['n'], P['d']);
+  }
+}
+
+const DivisionByZero = function () { return new Error("Division by Zero"); };
+const InvalidParameter = function () { return new Error("Invalid argument"); };
+const NonIntegerParameter = function () { return new Error("Parameters must be integer"); };
+
+Fraction.prototype = {
+
+  "s": C_ONE,
+  "n": C_ZERO,
+  "d": C_ONE,
+
+  /**
+   * Calculates the absolute value
+   *
+   * Ex: new Fraction(-4).abs() => 4
+   **/
+  "abs": function () {
+
+    return newFraction(this["n"], this["d"]);
+  },
+
+  /**
+   * Inverts the sign of the current fraction
+   *
+   * Ex: new Fraction(-4).neg() => 4
+   **/
+  "neg": function () {
+
+    return newFraction(-this["s"] * this["n"], this["d"]);
+  },
+
+  /**
+   * Adds two rational numbers
+   *
+   * Ex: new Fraction({n: 2, d: 3}).add("14.9") => 467 / 30
+   **/
+  "add": function (a, b) {
+
+    parse(a, b);
+    return newFraction(
+      this["s"] * this["n"] * P["d"] + P["s"] * this["d"] * P["n"],
+      this["d"] * P["d"]
+    );
+  },
+
+  /**
+   * Subtracts two rational numbers
+   *
+   * Ex: new Fraction({n: 2, d: 3}).add("14.9") => -427 / 30
+   **/
+  "sub": function (a, b) {
+
+    parse(a, b);
+    return newFraction(
+      this["s"] * this["n"] * P["d"] - P["s"] * this["d"] * P["n"],
+      this["d"] * P["d"]
+    );
+  },
+
+  /**
+   * Multiplies two rational numbers
+   *
+   * Ex: new Fraction("-17.(345)").mul(3) => 5776 / 111
+   **/
+  "mul": function (a, b) {
+
+    parse(a, b);
+    return newFraction(
+      this["s"] * P["s"] * this["n"] * P["n"],
+      this["d"] * P["d"]
+    );
+  },
+
+  /**
+   * Divides two rational numbers
+   *
+   * Ex: new Fraction("-17.(345)").inverse().div(3)
+   **/
+  "div": function (a, b) {
+
+    parse(a, b);
+    return newFraction(
+      this["s"] * P["s"] * this["n"] * P["d"],
+      this["d"] * P["n"]
+    );
+  },
+
+  /**
+   * Clones the actual object
+   *
+   * Ex: new Fraction("-17.(345)").clone()
+   **/
+  "clone": function () {
+    return newFraction(this['s'] * this['n'], this['d']);
+  },
+
+  /**
+   * Calculates the modulo of two rational numbers - a more precise fmod
+   *
+   * Ex: new Fraction('4.(3)').mod([7, 8]) => (13/3) % (7/8) = (5/6)
+   * Ex: new Fraction(20, 10).mod().equals(0) ? "is Integer"
+   **/
+  "mod": function (a, b) {
+
+    if (a === undefined) {
+      return newFraction(this["s"] * this["n"] % this["d"], C_ONE);
+    }
+
+    parse(a, b);
+    if (C_ZERO === P["n"] * this["d"]) {
+      throw DivisionByZero();
+    }
+
+    /**
+     * I derived the rational modulo similar to the modulo for integers
+     *
+     * https://raw.org/book/analysis/rational-numbers/
+     *
+     *    n1/d1 = (n2/d2) * q + r, where 0 ≤ r < n2/d2
+     * => d2 * n1 = n2 * d1 * q + d1 * d2 * r
+     * => r = (d2 * n1 - n2 * d1 * q) / (d1 * d2)
+     *      = (d2 * n1 - n2 * d1 * floor((d2 * n1) / (n2 * d1))) / (d1 * d2)
+     *      = ((d2 * n1) % (n2 * d1)) / (d1 * d2)
+     */
+    return newFraction(
+      this["s"] * (P["d"] * this["n"]) % (P["n"] * this["d"]),
+      P["d"] * this["d"]);
+  },
+
+  /**
+   * Calculates the fractional gcd of two rational numbers
+   *
+   * Ex: new Fraction(5,8).gcd(3,7) => 1/56
+   */
+  "gcd": function (a, b) {
+
+    parse(a, b);
+
+    // https://raw.org/book/analysis/rational-numbers/
+    // gcd(a / b, c / d) = gcd(a, c) / lcm(b, d)
+
+    return newFraction(gcd(P["n"], this["n"]) * gcd(P["d"], this["d"]), P["d"] * this["d"]);
+  },
+
+  /**
+   * Calculates the fractional lcm of two rational numbers
+   *
+   * Ex: new Fraction(5,8).lcm(3,7) => 15
+   */
+  "lcm": function (a, b) {
+
+    parse(a, b);
+
+    // https://raw.org/book/analysis/rational-numbers/
+    // lcm(a / b, c / d) = lcm(a, c) / gcd(b, d)
+
+    if (P["n"] === C_ZERO && this["n"] === C_ZERO) {
+      return newFraction(C_ZERO, C_ONE);
+    }
+    return newFraction(P["n"] * this["n"], gcd(P["n"], this["n"]) * gcd(P["d"], this["d"]));
+  },
+
+  /**
+   * Gets the inverse of the fraction, means numerator and denominator are exchanged
+   *
+   * Ex: new Fraction([-3, 4]).inverse() => -4 / 3
+   **/
+  "inverse": function () {
+    return newFraction(this["s"] * this["d"], this["n"]);
+  },
+
+  /**
+   * Calculates the fraction to some integer exponent
+   *
+   * Ex: new Fraction(-1,2).pow(-3) => -8
+   */
+  "pow": function (a, b) {
+
+    parse(a, b);
+
+    // Trivial case when exp is an integer
+
+    if (P['d'] === C_ONE) {
+
+      if (P['s'] < C_ZERO) {
+        return newFraction((this['s'] * this["d"]) ** P['n'], this["n"] ** P['n']);
+      } else {
+        return newFraction((this['s'] * this["n"]) ** P['n'], this["d"] ** P['n']);
+      }
+    }
+
+    // Negative roots become complex
+    //     (-a/b)^(c/d) = x
+    // ⇔ (-1)^(c/d) * (a/b)^(c/d) = x
+    // ⇔ (cos(pi) + i*sin(pi))^(c/d) * (a/b)^(c/d) = x
+    // ⇔ (cos(c*pi/d) + i*sin(c*pi/d)) * (a/b)^(c/d) = x       # DeMoivre's formula
+    // From which follows that only for c=0 the root is non-complex
+    if (this['s'] < C_ZERO) return null;
+
+    // Now prime factor n and d
+    let N = factorize(this['n']);
+    let D = factorize(this['d']);
+
+    // Exponentiate and take root for n and d individually
+    let n = C_ONE;
+    let d = C_ONE;
+    for (let k in N) {
+      if (k === '1') continue;
+      if (k === '0') {
+        n = C_ZERO;
+        break;
+      }
+      N[k] *= P['n'];
+
+      if (N[k] % P['d'] === C_ZERO) {
+        N[k] /= P['d'];
+      } else return null;
+      n *= BigInt(k) ** N[k];
+    }
+
+    for (let k in D) {
+      if (k === '1') continue;
+      D[k] *= P['n'];
+
+      if (D[k] % P['d'] === C_ZERO) {
+        D[k] /= P['d'];
+      } else return null;
+      d *= BigInt(k) ** D[k];
+    }
+
+    if (P['s'] < C_ZERO) {
+      return newFraction(d, n);
+    }
+    return newFraction(n, d);
+  },
+
+  /**
+   * Calculates the logarithm of a fraction to a given rational base
+   *
+   * Ex: new Fraction(27, 8).log(9, 4) => 3/2
+   */
+  "log": function (a, b) {
+
+    parse(a, b);
+
+    if (this['s'] <= C_ZERO || P['s'] <= C_ZERO) return null;
+
+    const allPrimes = Object.create(null);
+
+    const baseFactors = factorize(P['n']);
+    const T1 = factorize(P['d']);
+
+    const numberFactors = factorize(this['n']);
+    const T2 = factorize(this['d']);
+
+    for (const prime in T1) {
+      baseFactors[prime] = (baseFactors[prime] || C_ZERO) - T1[prime];
+    }
+    for (const prime in T2) {
+      numberFactors[prime] = (numberFactors[prime] || C_ZERO) - T2[prime];
+    }
+
+    for (const prime in baseFactors) {
+      if (prime === '1') continue;
+      allPrimes[prime] = true;
+    }
+    for (const prime in numberFactors) {
+      if (prime === '1') continue;
+      allPrimes[prime] = true;
+    }
+
+    let retN = null;
+    let retD = null;
+
+    // Iterate over all unique primes to determine if a consistent ratio exists
+    for (const prime in allPrimes) {
+
+      const baseExponent = baseFactors[prime] || C_ZERO;
+      const numberExponent = numberFactors[prime] || C_ZERO;
+
+      if (baseExponent === C_ZERO) {
+        if (numberExponent !== C_ZERO) {
+          return null; // Logarithm cannot be expressed as a rational number
+        }
+        continue; // Skip this prime since both exponents are zero
+      }
+
+      // Calculate the ratio of exponents for this prime
+      let curN = numberExponent;
+      let curD = baseExponent;
+
+      // Simplify the current ratio
+      const gcdValue = gcd(curN, curD);
+      curN /= gcdValue;
+      curD /= gcdValue;
+
+      // Check if this is the first ratio; otherwise, ensure ratios are consistent
+      if (retN === null && retD === null) {
+        retN = curN;
+        retD = curD;
+      } else if (curN * retD !== retN * curD) {
+        return null; // Ratios do not match, logarithm cannot be rational
+      }
+    }
+
+    return retN !== null && retD !== null
+      ? newFraction(retN, retD)
+      : null;
+  },
+
+  /**
+   * Check if two rational numbers are the same
+   *
+   * Ex: new Fraction(19.6).equals([98, 5]);
+   **/
+  "equals": function (a, b) {
+
+    parse(a, b);
+    return this["s"] * this["n"] * P["d"] === P["s"] * P["n"] * this["d"];
+  },
+
+  /**
+   * Check if this rational number is less than another
+   *
+   * Ex: new Fraction(19.6).lt([98, 5]);
+   **/
+  "lt": function (a, b) {
+
+    parse(a, b);
+    return this["s"] * this["n"] * P["d"] < P["s"] * P["n"] * this["d"];
+  },
+
+  /**
+   * Check if this rational number is less than or equal another
+   *
+   * Ex: new Fraction(19.6).lt([98, 5]);
+   **/
+  "lte": function (a, b) {
+
+    parse(a, b);
+    return this["s"] * this["n"] * P["d"] <= P["s"] * P["n"] * this["d"];
+  },
+
+  /**
+   * Check if this rational number is greater than another
+   *
+   * Ex: new Fraction(19.6).lt([98, 5]);
+   **/
+  "gt": function (a, b) {
+
+    parse(a, b);
+    return this["s"] * this["n"] * P["d"] > P["s"] * P["n"] * this["d"];
+  },
+
+  /**
+   * Check if this rational number is greater than or equal another
+   *
+   * Ex: new Fraction(19.6).lt([98, 5]);
+   **/
+  "gte": function (a, b) {
+
+    parse(a, b);
+    return this["s"] * this["n"] * P["d"] >= P["s"] * P["n"] * this["d"];
+  },
+
+  /**
+   * Compare two rational numbers
+   * < 0 iff this < that
+   * > 0 iff this > that
+   * = 0 iff this = that
+   *
+   * Ex: new Fraction(19.6).compare([98, 5]);
+   **/
+  "compare": function (a, b) {
+
+    parse(a, b);
+    let t = this["s"] * this["n"] * P["d"] - P["s"] * P["n"] * this["d"];
+
+    return (C_ZERO < t) - (t < C_ZERO);
+  },
+
+  /**
+   * Calculates the ceil of a rational number
+   *
+   * Ex: new Fraction('4.(3)').ceil() => (5 / 1)
+   **/
+  "ceil": function (places) {
+
+    places = C_TEN ** BigInt(places || 0);
+
+    return newFraction(ifloor(this["s"] * places * this["n"] / this["d"]) +
+      (places * this["n"] % this["d"] > C_ZERO && this["s"] >= C_ZERO ? C_ONE : C_ZERO),
+      places);
+  },
+
+  /**
+   * Calculates the floor of a rational number
+   *
+   * Ex: new Fraction('4.(3)').floor() => (4 / 1)
+   **/
+  "floor": function (places) {
+
+    places = C_TEN ** BigInt(places || 0);
+
+    return newFraction(ifloor(this["s"] * places * this["n"] / this["d"]) -
+      (places * this["n"] % this["d"] > C_ZERO && this["s"] < C_ZERO ? C_ONE : C_ZERO),
+      places);
+  },
+
+  /**
+   * Rounds a rational numbers
+   *
+   * Ex: new Fraction('4.(3)').round() => (4 / 1)
+   **/
+  "round": function (places) {
+
+    places = C_TEN ** BigInt(places || 0);
+
+    /* Derivation:
+
+    s >= 0:
+      round(n / d) = ifloor(n / d) + (n % d) / d >= 0.5 ? 1 : 0
+                   = ifloor(n / d) + 2(n % d) >= d ? 1 : 0
+    s < 0:
+      round(n / d) =-ifloor(n / d) - (n % d) / d > 0.5 ? 1 : 0
+                   =-ifloor(n / d) - 2(n % d) > d ? 1 : 0
+
+    =>:
+
+    round(s * n / d) = s * ifloor(n / d) + s * (C + 2(n % d) > d ? 1 : 0)
+        where C = s >= 0 ? 1 : 0, to fix the >= for the positve case.
+    */
+
+    return newFraction(ifloor(this["s"] * places * this["n"] / this["d"]) +
+      this["s"] * ((this["s"] >= C_ZERO ? C_ONE : C_ZERO) + C_TWO * (places * this["n"] % this["d"]) > this["d"] ? C_ONE : C_ZERO),
+      places);
+  },
+
+  /**
+    * Rounds a rational number to a multiple of another rational number
+    *
+    * Ex: new Fraction('0.9').roundTo("1/8") => 7 / 8
+    **/
+  "roundTo": function (a, b) {
+
+    /*
+    k * x/y ≤ a/b < (k+1) * x/y
+    ⇔ k ≤ a/b / (x/y) < (k+1)
+    ⇔ k = floor(a/b * y/x)
+    ⇔ k = floor((a * y) / (b * x))
+    */
+
+    parse(a, b);
+
+    const n = this['n'] * P['d'];
+    const d = this['d'] * P['n'];
+    const r = n % d;
+
+    // round(n / d) = ifloor(n / d) + 2(n % d) >= d ? 1 : 0
+    let k = ifloor(n / d);
+    if (r + r >= d) {
+      k++;
+    }
+    return newFraction(this['s'] * k * P['n'], P['d']);
+  },
+
+  /**
+   * Check if two rational numbers are divisible
+   *
+   * Ex: new Fraction(19.6).divisible(1.5);
+   */
+  "divisible": function (a, b) {
+
+    parse(a, b);
+    if (P['n'] === C_ZERO) return false;
+    return (this['n'] * P['d']) % (P['n'] * this['d']) === C_ZERO;
+  },
+
+  /**
+   * Returns a decimal representation of the fraction
+   *
+   * Ex: new Fraction("100.'91823'").valueOf() => 100.91823918239183
+   **/
+  'valueOf': function () {
+    //if (this['n'] <= MAX_INTEGER && this['d'] <= MAX_INTEGER) {
+    return Number(this['s'] * this['n']) / Number(this['d']);
+    //}
+  },
+
+  /**
+   * Creates a string representation of a fraction with all digits
+   *
+   * Ex: new Fraction("100.'91823'").toString() => "100.(91823)"
+   **/
+  'toString': function (dec = 15) {
+
+    let N = this["n"];
+    let D = this["d"];
+
+    let cycLen = cycleLen(N, D); // Cycle length
+    let cycOff = cycleStart(N, D, cycLen); // Cycle start
+
+    let str = this['s'] < C_ZERO ? "-" : "";
+
+    // Append integer part
+    str += ifloor(N / D);
+
+    N %= D;
+    N *= C_TEN;
+
+    if (N)
+      str += ".";
+
+    if (cycLen) {
+
+      for (let i = cycOff; i--;) {
+        str += ifloor(N / D);
+        N %= D;
+        N *= C_TEN;
+      }
+      str += "(";
+      for (let i = cycLen; i--;) {
+        str += ifloor(N / D);
+        N %= D;
+        N *= C_TEN;
+      }
+      str += ")";
+    } else {
+      for (let i = dec; N && i--;) {
+        str += ifloor(N / D);
+        N %= D;
+        N *= C_TEN;
+      }
+    }
+    return str;
+  },
+
+  /**
+   * Returns a string-fraction representation of a Fraction object
+   *
+   * Ex: new Fraction("1.'3'").toFraction() => "4 1/3"
+   **/
+  'toFraction': function (showMixed = false) {
+
+    let n = this["n"];
+    let d = this["d"];
+    let str = this['s'] < C_ZERO ? "-" : "";
+
+    if (d === C_ONE) {
+      str += n;
+    } else {
+      const whole = ifloor(n / d);
+      if (showMixed && whole > C_ZERO) {
+        str += whole;
+        str += " ";
+        n %= d;
+      }
+
+      str += n;
+      str += '/';
+      str += d;
+    }
+    return str;
+  },
+
+  /**
+   * Returns a latex representation of a Fraction object
+   *
+   * Ex: new Fraction("1.'3'").toLatex() => "\frac{4}{3}"
+   **/
+  'toLatex': function (showMixed = false) {
+
+    let n = this["n"];
+    let d = this["d"];
+    let str = this['s'] < C_ZERO ? "-" : "";
+
+    if (d === C_ONE) {
+      str += n;
+    } else {
+      const whole = ifloor(n / d);
+      if (showMixed && whole > C_ZERO) {
+        str += whole;
+        n %= d;
+      }
+
+      str += "\\frac{";
+      str += n;
+      str += '}{';
+      str += d;
+      str += '}';
+    }
+    return str;
+  },
+
+  /**
+   * Returns an array of continued fraction elements
+   *
+   * Ex: new Fraction("7/8").toContinued() => [0,1,7]
+   */
+  'toContinued': function () {
+
+    let a = this['n'];
+    let b = this['d'];
+    const res = [];
+
+    while (b) {
+      res.push(ifloor(a / b));
+      const t = a % b;
+      a = b;
+      b = t;
+    }
+    return res;
+  },
+
+  "simplify": function (eps = 1e-3) {
+
+    // Continued fractions give best approximations for a max denominator,
+    // generally outperforming mediants in denominator–accuracy trade-offs.
+    // Semiconvergents can further reduce the denominator within tolerance.
+
+    const ieps = BigInt(Math.ceil(1 / eps));
+
+    const thisABS = this['abs']();
+    const cont = thisABS['toContinued']();
+
+    for (let i = 1; i < cont.length; i++) {
+
+      let s = newFraction(cont[i - 1], C_ONE);
+      for (let k = i - 2; k >= 0; k--) {
+        s = s['inverse']()['add'](cont[k]);
+      }
+
+      let t = s['sub'](thisABS);
+      if (t['n'] * ieps < t['d']) { // More robust than Math.abs(t.valueOf()) < eps
+        return s['mul'](this['s']);
+      }
+    }
+    return this;
+  }
+};