Выполни умножение в задании 337

Задание 337. Выполни умножение: 1) $9\frac{3}{7} \cdot \frac{8}{22} = \frac{66}{7} \cdot \frac{8}{22} = \frac{3}{7} \cdot \frac{8}{1} = \frac{24}{7} = 3\frac{3}{7}$ 2) $6\frac{8}{17} \cdot \frac{16}{17} = \frac{110}{17} \cdot \frac{16}{17} = \frac{1760}{289} = 6\frac{16}{289}$ 3) $2\frac{1}{3} \cdot 1\frac{1}{5} = \frac{7}{3} \cdot \frac{6}{5} = \frac{7}{1} \cdot \frac{2}{5} = \frac{14}{5} = 2\frac{4}{5}$ 4) $19\frac{1}{2} \cdot 1\frac{5}{9} = \frac{39}{2} \cdot \frac{14}{9} = \frac{13}{1} \cdot \frac{7}{3} = \frac{91}{3} = 30\frac{1}{3}$ 5) $2\frac{1}{4} \cdot \frac{2}{27} = \frac{9}{4} \cdot \frac{2}{27} = \frac{1}{2} \cdot \frac{1}{3} = \frac{1}{6}$ 6) $2\frac{8}{11} \cdot \frac{5}{15} = \frac{30}{11} \cdot \frac{1}{3} = \frac{10}{11} \cdot \frac{1}{1} = \frac{10}{11}$ 7) $\frac{7}{9} \cdot 1\frac{1}{14} = \frac{7}{9} \cdot \frac{15}{14} = \frac{1}{3} \cdot \frac{5}{2} = \frac{5}{6}$ 8) $2\frac{2}{3} \cdot 3\frac{3}{5} = \frac{8}{3} \cdot \frac{18}{5} = \frac{8}{1} \cdot \frac{6}{5} = \frac{48}{5} = 9\frac{3}{5}$