$14\ \ \cdot\frac{6}{7}=$

$3\ \cdot4\ \frac{2}{9}=$

$3\ \frac{1}{3}\ \cdot5\ \frac{2}{5}=$

$\frac{8}{9}\ :\ 4 =$

$\frac{9}{16\ }\ :\ \frac{3}{4\ }\ =$

$2\ \frac{3}{4}\ :\ 4\ \frac{2}{5}\ =$