334. Выполните умножение: 1) 9/35 * 8; 2) 7/24 * 16; 3) 42 4/7; 4) 19 6/57

1) \(\frac{9}{35} \cdot 8 = \frac{9 \cdot 8}{35} = \frac{72}{35} = 2\frac{2}{35}\) 2) \(\frac{7}{24} \cdot 16 = \frac{7 \cdot 16}{24} = \frac{112}{24} = \frac{14}{3} = 4\frac{2}{3}\) 3) \(42 \cdot \frac{4}{7} = \frac{42 \cdot 4}{7} = \frac{168}{7} = 24\) 4) \(19 \cdot \frac{6}{57} = \frac{19 \cdot 6}{57} = \frac{114}{57} = 2\)