Выполни умножение: 1) 7/16 * 8/49

Задание 59. 1) $\frac{7}{16} \cdot \frac{8}{49} = \frac{7 \cdot 8}{16 \cdot 49} = \frac{1 \cdot 1}{2 \cdot 7} = \frac{1}{14}$ 2) $\frac{4}{7} \cdot \frac{8}{9} = \frac{4 \cdot 8}{7 \cdot 9} = \frac{32}{63}$ 3) $\frac{56}{69} \cdot \frac{69}{77} = \frac{56 \cdot 69}{69 \cdot 77} = \frac{8 \cdot 1}{1 \cdot 11} = \frac{8}{11}$ 4) $\frac{55}{72} \cdot \frac{40}{99} = \frac{55 \cdot 40}{72 \cdot 99} = \frac{5 \cdot 5}{9 \cdot 9} = \frac{25}{81}$ Задание 60. 1) $7 \cdot \frac{4}{37} = \frac{7 \cdot 4}{37} = \frac{28}{37}$ 2) $\frac{7}{15} \cdot 3 = \frac{7 \cdot 3}{15} = \frac{7 \cdot 1}{5} = \frac{7}{5} = 1\frac{2}{5}$ 3) $\frac{8}{13} \cdot 26 = \frac{8 \cdot 26}{13} = \frac{8 \cdot 2}{1} = 16$ 4) $3\frac{3}{8} \cdot \frac{7}{9} = \frac{27}{8} \cdot \frac{7}{9} = \frac{3 \cdot 7}{8 \cdot 1} = \frac{21}{8} = 2\frac{5}{8}$ 5) $4\frac{2}{7} \cdot \frac{11}{12} = \frac{30}{7} \cdot \frac{11}{12} = \frac{5 \cdot 11}{7 \cdot 2} = \frac{55}{14} = 3\frac{13}{14}$ 6) $1\frac{1}{13} \cdot 1\frac{2}{8} = \frac{14}{13} \cdot \frac{10}{8} = \frac{7 \cdot 5}{13 \cdot 4} = \frac{35}{52}$