2 2 7 2 2--4-+1,25-2--. 7787

$$2\frac{2}{7} \cdot 4\frac{7}{8} + 1,25 \cdot 2\frac{2}{7} = \frac{16}{7} \cdot \frac{39}{8} + \frac{125}{100} \cdot \frac{16}{7} = \frac{2}{7} \cdot 39 + \frac{5}{4} \cdot \frac{16}{7} = \frac{78}{7} + \frac{5}{1} \cdot \frac{4}{7} = \frac{78}{7} + \frac{20}{7} = \frac{98}{7} = 14$$

Ответ: $$14$$