в) \(7\frac{4}{27} \cdot 5\);

в) \(7\frac{4}{27} \cdot 5\);

1. \(7\frac{4}{27} = \frac{7 \cdot 27 + 4}{27} = \frac{189 + 4}{27} = \frac{193}{27}\)
2. \(\frac{193}{27} \cdot 5 = \frac{193 \cdot 5}{27} = \frac{965}{27} = 35\frac{20}{27}\)

Ответ: \(35\frac{20}{27}\)