20=?...

ура6 @ура6

July 2022 1 5 Report

Срочно 11/15 * (4 1/2 - 3 2/5:17/20)+1 11/20=?

Answers & Comments

Inf777

Verified answer

$\tt\displaystyle\frac{11}{15}*(4\frac{1}{2}-3\frac{2}{5}:\frac{17}{20})+1\frac{11}{20}=1\frac{11}{12}$

$1)3\tt\displaystyle\frac{2}{5}:\frac{17}{20}=\frac{17}{5}:\frac{17}{20}=\frac{17}{5}*\frac{20}{17}=\frac{20}{5}=4$

$2)4\tt\displaystyle\frac{1}{2}-4=\frac{1}{2}$

$3) \tt\displaystyle\frac{11}{15}*\frac{1}{2}=\frac{11}{30}$

$4)\tt\displaystyle\frac{11}{30}+1\frac{11}{20}=\frac{22}{60}+1\frac{33}{60}=1\frac{55}{60}=1\frac{11}{12}$

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