[otabdeveloper2]

> For Floats in particular, binary implementation details leak all the time due to rounding.

No, they don't. Floats are meant to represent real numbers reasonably accurately.

Real numbers aren't fractions, and the idea of 'rounding' doesn't even apply to reals.

What you want are rational numbers, they solve your use case perfectly.

Floats don't represent rational numbers properly, and they are not meant to.