16) \((\frac{10}{13} + \frac{15}{4}) \cdot \frac{26}{5} = (\frac{40}{52} + \frac{195}{52}) \cdot \frac{26}{5} = \frac{235}{52} \cdot \frac{26}{5} = \frac{235 \cdot 26}{52 \cdot 5} = \frac{47 \cdot 1}{2 \cdot 1} = \frac{47}{2} = 23\frac{1}{2}\)
Ответ: 47/2