Вычислите 14/95×5/7., 3 4\7 × 8 2/5., 35/54 : 7\9 ., 8 2/7: 29 помогите с объяснением...

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$\frac{14}{95} \times \frac{5}{7} = \frac{14 \times 95}{95 \times 7} = \frac{2}{19} \\ \\ 3 \frac{4}{7} \times 8 \frac{2}{5} = \frac{25}{7} \times \frac{42}{5} = \frac{5}{7} \times 42 = \\ \\ = 30 \\ \\ \frac{35}{54} \div \frac{7}{9} = \frac{5}{54} \times 9 = \frac{45}{54 } = \frac{5}{6} \\ \\ 8 \frac{2}{7} \div 29 = \frac{74}{7} \times \frac{1}{29} = \frac{74}{203}$
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