5-5,8):5...

maksyakovlev @maksyakovlev

October 2021 1 23 Report

20:(6 3/11+1 8/11)+(7 2/5-5,8):5

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20:(6 3/11+1 8/11)+(7 2/5-5,8):5=2,82
разбиваем уравнение на действия
$1) 6\frac{3}{11}+1\frac{8}{11}=(6+1)+(\frac{3}{11}+\frac{8}{11})=7+\frac{3+8}{11}=7+\frac{11}{11}=7+1=8 \\ 2)7\frac{2}{5}-5,8=7,4-5,8=1,6 \\ 3)20:8=\frac{20}{8}=\frac{5}{2}=2,5 \\ 4) 1,6:5=\frac{1,6}{5}=\frac{16}{50}=\frac{8}{25}=0,32 \\ 5)2,5+0,32=2,82$

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