Question

Rút gọn: \(\dfrac{7.25-49}{7.24+21}\)

Answer 1

\(\dfrac{7.25-49}{7.24+21}=\dfrac{7.25-7.7}{7.24+7.3}=\dfrac{7.\left(25-7\right)}{7.\left(24+3\right)}\\ =\dfrac{18}{27}\)

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Answer 2

\(\dfrac{7.25-49}{7.24+21}\)=\(\dfrac{7.25-7.7}{7.24+7.3}\)

\(\dfrac{7.\left(25-7\right)}{7.\left(24+3\right)}\)=\(\dfrac{18}{27}\)

Answer 3

\(\dfrac{7.25-49}{7.24+21}\)= \(\dfrac{7.25-7.7}{7.24+3.7}\)= \(\dfrac{7.\left(25-7\right)}{7.\left(24+3\right)}\)=\(\dfrac{18}{27}=\dfrac{2}{3}\)

Answer 4

\(\dfrac{7.25-49}{7.24+21}=\dfrac{7.25-7.7}{7.24+7.3}=\dfrac{7\left(25-7\right)}{7\left(24+3\right)}=\dfrac{18}{27}=\dfrac{2}{3}\)

Answer 5

Giải chi tiết cho mình nhé