Question

[Đặng vân anh]

so sánh 2 phân số sau

A=\(\frac{54.107-53}{53.107+54}vaB=\frac{135.269-133}{134.269+135}\)

Answer 1

[Đỗ Lê Tú Linh]

\(A=\frac{54\cdot107-53}{53\cdot107+54}=\frac{\left(53+1\right)107-53}{53\cdot107+54}=\frac{53\cdot107+107-53}{53\cdot107+54}=\frac{53\cdot107+54}{53\cdot107+54}=1\)

\(B=\frac{135\cdot268-133}{134\cdot269+135}=\frac{\left(134+1\right)\cdot268-133}{134\cdot269+135}=\frac{134\cdot268+268-133}{34\cdot269+135}=\frac{134\cdot268+135}{134\cdot269+135}=1\)

Vì 1=1 nên A=B

Answer 2

[ngyễn hoàng vương]

ban tra loi viet de sai roi 269 ma viet thanh 268