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.

Warning

There is currently a bug that may prevent numbers from being generated correctly if they contain zeros.

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 } from "repeating-decimal";

const result = make_fraction(
	{
 		integer:0,
		leading_decimal:"009",
		repeating_decimal:"123"
	},
	10
);

console.log(result);
// {numerator: 1519,denominator: 166500}
// 1519/166500=0.009123123...