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import { greatestCommonDivisor } from "../max-points-on-a-line/greatest_common_divisor.ts";import { deduplication } from "./deduplication.ts";import { Fraction } from "./Fraction.ts";import { parseFraction } from "./parseFraction.ts";import { FractionToString } from "./Fraction.ts";export function fractionAdd(fractions: Fraction[]): Fraction {    const denominator = deduplication(        fractions.map((f) => f.denominator),    ).reduce((a, b) => a * b);    const molecular = fractions        .map((f) => (f.sign * f.molecular * denominator) / f.denominator)        .reduce((a, b) => a + b);
    return new Fraction({        denominator: denominator,        molecular: molecular,    });}export function simplifyFraction(fraction: Fraction) {    const { molecular, denominator } = fraction;    const gcd = greatestCommonDivisor(molecular, denominator);    return new Fraction({        sign: fraction.sign,        denominator: fraction.denominator / gcd,        molecular: fraction.molecular / gcd,    });}function fractionAddition(expression: string): string {    const fractions = parseFraction(expression);
    return FractionToString(        simplifyFraction(fractionAdd(fractions)),    );}export default fractionAddition;