Question

Вычислите: 7/3:(5/8-8/3)-2*10/7

Answer 1

7/3:(5/8-8/3)-2•10/7=-4
1)5/8-8/3=15/24-64/24=-49/24
2)7/3:(-49/24)=-8/7=-1 1/7
3)2•10/7=20/7=2 6/7
4)-1 1/7-2 6/7=-4

Answer 2

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) $- 1 \frac{1}{7} - 2 \frac{6}{7} = -3 \frac{7}{7} = - 4$