Question

Which of the following are rational numbers and which are not?

$-5$

Answer 1

A rational number is defined as a number that can be expressed in the form $\frac{\mathrm{p}}{\mathrm{q}}$ where $\mathrm{p}$ (numerator) and $\mathrm{q}$ (denominator) are integers $(\mathrm{q}\ne 0)$.

So, $-5$can be written as $\frac{-5}{1}$, where $-5$and $1$ are integers and the denominator $1\ne 0$.

Hence,,$-5$ is a Rational Number.