Question

11 - (7/6 + 2/3) - 1 : 7/8

Answer 1

$\frac{7}{6} + \frac{2}{3} = \frac{7}{6} + \frac{4}{6} = \frac{11}{6} \\ 1 \div \frac{7}{8} = 1 \times \frac{8}{7} = \frac{8}{7} \\ 11 - \frac{11}{6} = \frac{66}{6} - \frac{11}{6} = \frac{55}{6} \\ \frac{55}{6} - \frac{8}{7} = \frac{385}{42} - \frac{48}{42} = \frac{337}{42} \\ \frac{337}{42} = 8 \frac{1}{42}$
Ответ: 8 1/42