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rational numbers

Any number expressible as a ratio of two integers — symbol $\mathbb{Q}$ .

$\mathbb{Q}$ is the set of numbers expressible as $\frac{p}{q}$ for integers $p, q$ with $q \neq 0$ . Their decimals terminate or repeat.

Examples

$\frac{3}{8}$ , $-5$ , and $0.75$ are all rational.