# Rational Numbers : Rational Numbers « Number « Ruby

- Ruby
- Number
- Rational Numbers

Rational Numbers

A rational number is a number that can be expressed as a fraction of integers.
Ruby supports the use of rational numbers via the Rational class.
To use the Rational **class**, you must require it in the program.
You create a rational number with the Rational method.
Rational expects you to use integers, by the way.
It will generate errors **if** you use floats.

### Related examples in the same category