Question

Вычислите: 7/3:(5/8-8/3)-2*10/7

Answer 1

Решение:
$frac{7}{3} : ( frac{5}{8} - frac{8}{3} ) - 2* frac{10}{7} = -4$
1)$frac{5}{8} - frac{8}{3} = frac{15}{24} - frac{64}{24} = - frac{49}{24} = - 2 frac{1}{24}$
2) $frac{7}{3} :( - frac{49}{24}) = - frac{7*24}{3*49} = - frac{1*8}{1*7} = - 1 frac{1}{7}$
3) $2* frac{10}{7} = frac{20}{7} = 2 frac{6}{7}$
4) $- 1 frac{1}{7} - 2 frac{6}{7} = -3 frac{7}{7} = - 4$