Answer
$= \frac{39}{70}$
Work Step by Step
We first create a common denominator, and then we add the numerators together to obtain:
$\frac{9}{14} - \frac{3}{35}$
$= \frac{9(35)}{490} - \frac{3(14)}{490}$
$= \frac{315}{490} - \frac{42}{490}$
$= \frac{273}{490}$
$= \frac{39}{70}$
