$4\cdot\frac{3}{7}$

$\frac{12}{5}\cdot3$

$10\cdot\frac{6}{5}$

$\frac{5}{6}\cdot8$

$3\cdot\frac{6}{7}$

$\frac{5}{8}\cdot6$

$4\cdot\frac18$

$\frac45\cdot2$