1/2×(7/8-4)+6×7/8 памагити пж

Ответ:

\frac{1}{2} ( \frac{7}{8} - 4) + 6 \times \frac{7}{8} = \\ = \frac{7}{16} - 2 + \frac{21}{4} = \\ = \frac{7 - 2 \times 16 + 21 \times 4}{16} = \\ = \frac{59}{16} = 3 \frac{11}{16}