The formula below can be used to divide a fraction by a fraction.

$\frac{a}{b}\xf7\frac{c}{d}=\frac{a\times d}{b\times c}$

Use the formula from the box above to find the quotient.

In this case, *a* = 3, *b* = 4, *c* = 3, and *d* = 9.

Substitute the numbers into the formula to find the quotient.

$\begin{array}{rcl}\frac{a\times d}{b\times c}& =& \frac{3\times 9}{4\times 3}\\ & =& \frac{27}{12}\\ & =& \frac{9}{4}\end{array}$

So, $\frac{3}{4}\xf7\frac{3}{9}=\frac{9}{4}$.