Answer
$|\displaystyle \frac{3}{5}| = |-0.6|,\quad$ fill the box with $ = .$
Work Step by Step
The absolute value of a real number a, denoted by $|a|$, is the distance from 0 to a on a number line.
Because absolute value describes a distance, it is never negative.
---
The distance from $\displaystyle \frac{3}{5}$ to zero is $\displaystyle \frac{3}{5}$ units ,
$|\displaystyle \frac{3}{5}|=\frac{3}{5},\qquad$
The distance from $-0.6$ to zero is $0.6$ units,
$|-0.6|=0.6=\displaystyle \frac{6}{10}\qquad$ ... reduce with 2
$=\displaystyle \frac{3}{5}$
They are equal, and we write
$|\displaystyle \frac{3}{5}| = |-0.6|,\quad$ fill the box with $ = .$