Question

-9 3/7:(-1 4/7)-12,6(4 1/6)​

Answer 1

Ответ:

$- 46\frac{1}{2}$

Пошаговое объяснение:

$- 9 \frac{3}{7} \div ( - 1 \frac{4}{7} ) - 12.6(4 \frac{1}{6} ) = - \frac{ 66}{7} \div ( - \frac{11}{7} ) - \frac{63}{5} \times \frac{25}{6} = \frac{66}{7} \times \frac{7}{11} - \frac{63}{5} \times \frac{25}{6} = \frac{66}{7} \times \frac{7}{11} - 21 \times \frac{5}{2} = 6 - 21 \times \frac{5}{2} = 6 - \frac{105}{2} = - \frac{93}{2} = - 46\frac{1}{2}$