How do you simplify abs(45/2)?

$\left\mid \frac{45}{2} \right\mid = \textcolor{b l u e}{\frac{45}{2}}$
$\left\mid \frac{45}{2} \right\mid = \frac{45}{2}$ just as $\left\mid - \frac{45}{2} \right\mid = \frac{45}{2}$