Задача 69026 ...
Условие
) :b.Если a=5/12, b=3/8.Все спасибо заранее????
Решение
[m](1\frac{1}{35}:\frac{4}{5}-1\frac{8}{35})\cdot 3\frac{1}{3}=(\frac{35\cdot 1+1}{35}:\frac{4}{5}-\frac{35\cdot 1+8}{35})\cdot \frac{3\cdot 3+11}{3}=(\frac{36}{35}\cdot \frac{5}{4}-\frac{43}{35})\cdot \frac{10}{3}=(\frac{9}{35}\cdot \frac{5}{1}-\frac{43}{35})\cdot \frac{10}{3}=(\frac{45}{35}-\frac{43}{35})\cdot \frac{10}{3}=\frac{2}{35}\cdot \frac{10}{3}=\frac{2}{7}\cdot \frac{2}{3}= \frac{4}{21} [/m]
[m](\frac{5}{12}+\frac{1}{8}):\frac{3}{8}=(\frac{5\cdot 2}{12\cdot 2}+\frac{1\cdot 3}{8\cdot 3}):\frac{3}{8}(\frac{10}{24}+\frac{3}{24})\cdot \frac{8}{3}=\frac{13}{24}\cdot \frac{8}{3}=\frac{13}{3}\cdot \frac{1}{3}=\frac{13}{9}=1\frac{4}{9}[/m]