To divide mixed numbers, first write them as fractions. Then divide the fractions. For example,
$2 \ \frac{1}{3}$ ÷ $3 \ \frac{4}{5}$
$= \ \frac{7}{3}$ ÷ $\frac{19}{5}$
$= \ \frac{7}{3}$ x $\frac{5}{19}$
$= \ \frac{7 \ x \ 5}{3 \ x \ 19}$
$= \ \frac{35}{57}$
We may also use the cancellation method. In the example below, the whole number is written as fraction and the mixed number to fraction. It is shown below:
$3$ ÷ $1 \ \frac{2}{7}$
$= \ \frac{3}{1}$ ÷ $\frac{9}{7}$
$= \ \frac{3}{1}$ x $\frac{7}{9}$
$= \ \frac{1 \ x \ 7}{1 \ x \ 3}$
$= \ \frac{7}{3}$