fracty
Fracty is a decimal-to-fraction conversion module that solves the many well known problems with decimal-to-fraction conversion modules. Those common problems include overlooking conversion inaccuracies in the IEEE Standard for Floating-Point Arithmetic (I
numeric-quantity
Number parser with support for mixed numbers, vulgar fractions, and Roman numerals
decimal.js
An arbitrary-precision Decimal type for JavaScript.
big.js
A small, fast, easy-to-use library for arbitrary-precision decimal arithmetic