## What Are Numbers? Pt. 3: The Rational Numbers

Welcome to a four part series on ‘What Are Numbers?’. In the previous part, we constructed the Integers by using the equivalence classes of Natural Number ordered pairs that represent equations in the form $$x + b = a$$. For example, the Integer we write down in the usual way as $$-2$$ describes the set… Continue reading What Are Numbers? Pt. 3: The Rational Numbers