решите пожалуйста 5 класс. Created by Дикопраз. matematika-ru

решите пожалуйста 5 класс...

Дикопраз @Дикопраз

July 2022 1 5 Report

решите пожалуйста 5 класс

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ndusha

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$(3\frac{1}{3}+5 \frac{1}{6})* \frac{2}{5}-2 \frac{3}{4}:( 1\frac{1}{2}- \frac{2}{5})= (3\frac{2}{6}+5 \frac{1}{6})* \frac{2}{5}-2 \frac{3}{4}:( 1\frac{5}{10}- \frac{4}{10})= \\ = 8\frac{3}{6}* \frac{2}{5}-2 \frac{3}{4}:1\frac{1}{10}=8\frac{1}{2}* \frac{2}{5}-2 \frac{3}{4}:1\frac{1}{10}=\frac{17}{2}* \frac{2}{5}-\frac{11}{4}:\frac{11}{10}= \\ =17* \frac{1}{5}-\frac{11}{4}*\frac{10}{11}=17/5-10/4=3.4-2.5=0.9$

3 1/3*2 2/5+(2-4 4/15*3/17)=4/3*12/5+(2-64/15*3/17)=4/1*3/5+(2-64/5*1/17)=
= 12/5+(2-64/85)=2 2/5+1 21/85= 2 34/85+1 21/85=3 55/85=3 11/17

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