Автор - saidababazade

Решите уравнение 1) (2целых 7/8 - x)+4целых 1/6=5целых 3/4 2)y+4/30=2/3+2/5​

Ответ

Автор - papagenius

Пошаговое объяснение:

[begin{gathered}left( {2frac{7}{8}-x} right)+4frac{1}{6}=5frac{3}{4} hfill \left( {2frac{7}{8}-x} right)=5frac{3}{4}-4frac{1}{6} hfill \left( {2frac{7}{8}-x} right)=5frac{9}{{12}}-4frac{2}{{12}} hfill \left( {2frac{7}{8}-x} right)=1frac{7}{{12}} hfill \x=2frac{7}{8}-1frac{7}{{12}} hfill \x=2frac{{21}}{{24}}-1frac{{14}}{{24}} hfill \x= boxed{1frac{7}{{24}}} hfill \ end{gathered} ]

[begin{gathered}y+frac{4}{{30}}=frac{2}{3}+frac{2}{5} hfill \y+frac{4}{{30}}=frac{{10}}{{15}}+frac{6}{{15}} hfill \y+frac{4}{{30}}=frac{{16}}{{15}} hfill \y=frac{{16}}{{15}}-frac{4}{{30}} hfill \y=frac{{32}}{{30}}-frac{4}{{30}} hfill \y=frac{{28}}{{30}}=boxed{frac{{14}}{{15}}} hfill \ end{gathered} ]

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