Помогите решить пожалуйста

1) $\frac{1}{2} * \frac{5}{6} = \frac{5}{2*6} = \frac{5}{12}$
2) $\frac{4}{5} * \frac{5}{7} = \frac{4*5}{5*7} = \frac{4}{7}$
3) $4 * \frac{5}{9} = \frac{4*5}{9} = \frac{20}{9} = 2\frac{2}{9}$
4) $1 \frac{1}{2} * \frac{2}{3} = \frac{3*2}{2*3} = 1$
5) $1\frac{1}{3} * 2\frac{1}{4} = \frac{4*9}{3*4} = \frac{9}{3} = 3$

1) $\frac{8}{9} * \frac{1}{3} = \frac{8}{9*3} = \frac{8}{27}$
2) $\frac{8}{9} * \frac{3}{5} = \frac{8*3}{9*5} = \frac{8}{15}$
3) $\frac{5}{13} * 3 = 1\frac{2}{13}$
4) $2 \frac{1}{2} * \frac{2}{5} = 1$
5) $3\frac{1}{3} * 1\frac{1}{2} = \frac{10*3}{3*2} = 5$

1) $\frac{4}{9} * \frac{2}{3} = \frac{8}{27}$
2) $\frac{7}{8} * 1\frac{1}{7} = 1$
3) $\frac{7}{9} * 2 = 1\frac{5}{9}$
4) $\frac{7}{8} * 5\frac{1}{3} = 4\frac{2}{3}$
5) $2\frac{3}{4} * 1\frac{1}{11} = 3$