#### Answer

44

#### Work Step by Step

In order to rewrite $\frac{4}{15}$ with a denominator of 165, we must first divide 165 by the original denominator.
$165÷15=11$
Therefore, we must multiply the original numerator by 11.
$\frac{4}{15}=\frac{4\times11}{165}=\frac{44}{165}$