repeating-decimal

Convert repeating decimals into fractions.

This package provides a utility to convert numbers with repeating parts(e.g. 0.987123123123...=41089/41625) into a reduced fractional representation.

Features

• Convert repeating decimals to fractions
• Supports arbitrary bases (2–36)
• Fully written in TypeScript
• ESM-compatible
• No external runtime dependencies

Installation

npm install repeating-decimal 

Usage

import { make_fraction,make_repeating_decimal } from "repeating-decimal";
const result_fraction = make_fraction(
	{
		integer:0,
		leading_decimal:"090",
		repeating_decimal:"1020"
	},
	10
);
console.log(result_fraction);
// {numerator: 30031,denominator: 333300}
// 30031/333300=0.09010201020...

const result_repeating_decimal=make_repeating_decimal(result_fraction,10)
console.log(result_repeating_decimal)
//	{integer:0,leading_decimal:"090",repeating_decimal:"1020"}