Question

anh chi oi giai ho em bai nay

32 x 53 - 21/53 x 31 + 32

anh chi lam theo cach tieu hoc cho em nhe

 

Answer 1

\(\frac{32\times53-21}{53\times31+32}\)

\(=\frac{\left(31+1\right)\times53-21}{53\times31+32}\)

\(=\frac{31\times53+53-21}{53\times31+32}\)

\(=\frac{31\times53+32}{53\times31+32}\)

\(=1\)

Answer 2

\(\frac{32\times53-21}{53\times31+32}=\frac{\left(31+1\right)\times53-21}{31\times53+32}\)

\(=\frac{31\times53+53-21}{31\times53+32}=\frac{31\times53+32}{31\times53+32}\)

\(=1\)

Answer 3

\(\frac{32\times53-21}{53\times31+32}=\frac{\left(31+1\right)\times53-21}{53\times31+32}\)

\(=\frac{31\times53+53-21}{53\times31+32}\)\(=\frac{31\times53+32}{53\times31+32}=1\)

Answer 4

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