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Question

tìm x: (2/11+1/3).x=(1/7-1/8).56giúp với

Ahwi · Accepted Answer

$\left(\frac{2}{11}+\frac{1}{3}\right)\cdot x=\left(\frac{1}{7}-\frac{1}{8}\right)\cdot56$$\Rightarrow\left(\frac{6}{33}+\frac{11}{33}\right)\cdot x=\left(\frac{8}{56}-\frac{7}{56}\right)\cdot56$$\Rightarrow\left(\frac{6+11}{33}\right)\cdot x=\left(\frac{8-7}{56}\right)\cdot56$​$\Rightarrow\frac{17}{33}\cdot x=\frac{1}{56}\cdot56$​$\Rightarrow\frac{17}{33}\cdot x=1$$\Rightarrow x=1:\frac{17}{33}=\frac{33}{17}$Vậy x = 33/17Câu trả lời: $\left(\frac{2}{11}+\frac{1}{3}\right)\cdot x=\left(\frac{1}{7}-\frac{1}{8}\right)\cdot56$$\Rightarrow\left(\frac{6}{33}+\frac{11}{33}\right)\cdot x=\left(\frac{8}{56}-\frac{7}{56}\right)\cdot56$$\Rightarrow\left(\frac{6+11}{33}\right)\cdot x=\left(\frac{8-7}{56}\right)\cdot56$​$\Rightarrow\frac{17}{33}\cdot x=\frac{1}{56}\cdot56$​$\Rightarrow\frac{17}{33}\cdot x=1$$\Rightarrow x=1:\frac{17}{33}=\frac{33}{17}$Vậy x = 33/17

Huỳnh Quang Sang · Answer

$\left[\frac{2}{11}+\frac{1}{3}\right]\cdot x=\left[\frac{1}{7}-\frac{1}{8}\right]\cdot56$$\Rightarrow\left[\frac{2\cdot3}{33}+\frac{1\cdot11}{33}\right]\cdot x=\left[\frac{8}{56}-\frac{7}{56}\right]\cdot56$$\Rightarrow\left[\frac{6}{33}+\frac{11}{33}\right]\cdot x=\frac{1}{56}\cdot56$$\Rightarrow\frac{17}{33}\cdot x=1$$\Rightarrow x=1:\frac{17}{33}=1\cdot\frac{33}{17}=\frac{33}{17}$Câu trả lời: $\left[\frac{2}{11}+\frac{1}{3}\right]\cdot x=\left[\frac{1}{7}-\frac{1}{8}\right]\cdot56$$\Rightarrow\left[\frac{2\cdot3}{33}+\frac{1\cdot11}{33}\right]\cdot x=\left[\frac{8}{56}-\frac{7}{56}\right]\cdot56$$\Rightarrow\left[\frac{6}{33}+\frac{11}{33}\right]\cdot x=\frac{1}{56}\cdot56$$\Rightarrow\frac{17}{33}\cdot x=1$$\Rightarrow x=1:\frac{17}{33}=1\cdot\frac{33}{17}=\frac{33}{17}$

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