#### Answer

3

#### Work Step by Step

Multiply the inside of each radical with one radical over both of them.
$\frac{\sqrt{72}}{\sqrt{8}}$
Divide the inside of each radical with one radical over both of them.
$\sqrt{\frac{72}{8}}$
Simplify.
$\sqrt{9}$
Simplify the radical.
$\sqrt{9}=3$