Question

Выполните действие 4 6/7 - (3 5/7 - 15/7) (Дроби)

Answer 1

$4\frac{6}{7}-(3\frac{5}{7}-1\frac{5}{7})=\frac{34}{7}-( \frac{26}{7}-\frac{12}{7})=\frac{34}{7}- \frac{26}{7}+\frac{12}{7}= \frac{8}{7}+\frac{12}{7}=\frac{20}{7}$

Answer 2

$3\frac{5}{7}$

Пошаговое объяснение:

$\frac{35}{7}-\frac{15}{7}=5-\frac{15}{7}=\frac{5*7}{7}-\frac{15}{7}=\frac{35-15}{7}=\frac{20}{7} =\frac{2*7+5}{7}=2\frac{6}{7}$ в скобках

$\frac{46}{7}-2\frac{6}{7}=\frac{46}{6}-\frac{6+2*7}{7}=\frac{46}{7} -\frac{20}{7}=\frac{46-20}{7} =\frac{26}{7} =\frac{3*7+5}{7}=3\frac{5}{7}$