# How do you simplify abs(-9/3)?

$\left\mid - \frac{9}{3} \right\mid = \textcolor{g r e e n}{3}$
$- \frac{9}{3} = = 3$
$\left\mid - \frac{9}{3} \right\mid = \left\mid - 3 \right\mid$ is, by definition, the distance from the origin (i.e. $0$) to $\left(- 3\right)$,
that is $\left\mid - 3 \right\mid = 3$