5.462 Вычислите: а) \(\frac{2}{3}\) ч · 6; б) \(\frac{7}{12}\) ч · 8; в) \(\frac{5}{24}\) ч · 24; г) \(\frac{7}{15}\) ч · 10; д) \(\frac{5}{6}\) ч · 12.

а) \(\frac{2}{3}\) ч · 6 = \(\frac{2*6}{3}\) = \(\frac{12}{3}\) = 4

Ответ: 4

б) \(\frac{7}{12}\) ч · 8 = \(\frac{7*8}{12}\) = \(\frac{56}{12}\) = \(\frac{14}{3}\) = 4\(\frac{2}{3}\)

Ответ: 4\(\frac{2}{3}\)

в) \(\frac{5}{24}\) ч · 24 = \(\frac{5*24}{24}\) = 5

Ответ: 5

г) \(\frac{7}{15}\) ч · 10 = \(\frac{7*10}{15}\) = \(\frac{70}{15}\) = \(\frac{14}{3}\) = 4\(\frac{2}{3}\)

Ответ: 4\(\frac{2}{3}\)

д) \(\frac{5}{6}\) ч · 12 = \(\frac{5*12}{6}\) = \(\frac{60}{6}\) = 10

Ответ: 10