I made a little decimal-to-fraction converter and a fraction simplifier (along the way) if anyone wants to use it: (sorry, I could only make this in JavaScript, I don’t think Python allows you to change these things)
const Fraction = (function () {
const sf = (top, bottom) => {
if (bottom === 0) return top;
return sf(bottom, top % bottom);
};
class Fraction {
constructor (top, bottom) {
if (top && !bottom) {
let m = Math.pow(10, String(Math.decimal(top, true)).length);
this.top = top * m;
this.bottom = m;
this.simplify(true);
return;
}
this.top = top;
this.bottom = bottom;
}
simplify (s) {
let div = sf(this.top, this.bottom);
if (s === true) {
this.top /= div;
this.bottom /= div;
return;
}
return new Fraction(this.top / div, this.bottom / div);
}
toDecimal () {
return this.top / this.bottom;
}
}
Math._round = Math.round;
Math.round = (n, t) => {
if (!t) return Math._round(n);
return Math._round(n / t) * t;
};
Math.decimal = (n, c) => {
let str = String(n).split('.')[1];
return Number(((!c) ? '0.' : '') + str);
};
return Fraction;
})();
usage:
new Fraction(0.6); // if you want to convert 0.6 to a fraction
new Fraction(5, 10); // if you want to just create a fraction object
fraction.simplify(); // only works if fraction is defined as a `Fraction` object
IMPORTANT: when working with classes you must use new
