Rational numbers

I’ve just started experimenting with Rescript and couldn’t find support for rational numbers, either built into the language or as a library, but I was able to add a quick-and-dirty LLM-generated Rational.res module and used it like this:

// Demo.res
open Rational

let a = fromString("6/8")
let b = fromString("1/4")
let c = add(a, b)

Console.log("6/8 can be simplified to " + a->toString)
Console.log("a + b = " + c->toString)

It gets transpiled into the following JS:

// Generated by ReScript, PLEASE EDIT WITH CARE

import * as Rational from "./Rational.res.mjs";

let a = Rational.fromString("6/8");

let b = Rational.fromString("1/4");

let c = Rational.add(a, b);

console.log("6/8 can be simplified to " + Rational.toString(a));

console.log("a + b = " + Rational.toString(c));

export {
  a,
  b,
  c,
}
/* a Not a pure module */

Running it outputs the following:

$ node src/Demo.res.mjs
6/8 can be simplified to 3/4
a + b = 1

Overall, I find this quite ergonomic, but of course it would be even nicer to be able to use the regular operators (+, -, * and /). Considering the recent addition of BigInt and unified operators (see Rethinking Operators), would it be feasible to make rational numbers part of the language itself like in Haskell, Julia and Scheme?