Rational numbers



A rational number is a number that can be expressed as the quotient or fraction $p⁄q$ of two integers, a numerator $p$ and a non-zero denominator $q$. The set of all rational numbers, also referred to as "the rationals", the field of rationals, or the field of rational numbers is usually denoted by a boldface $Q$ (or blackboard bold $$\mathbb{Q}$$, Unicode, or ).

Lessons

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