Answer
$\frac{1}{2} \lt 0.54$
$0.555$ recurring $= \frac{5}{9}$
$\frac{5}{7} \lt 0.72$
Work Step by Step
$\frac{1}{2}$ can be written as 0.5, which is smaller than 0.54
$\frac{5}{9}$ can be written as 0.555 recurring, so it is equal
$\frac{5}{7}$ can be written as 0.714, which is smaller than 0.72