Question

tính bằng hai cách

a] | 3/4 + 1/2 ] : 3/5

b] | 5/6 - 1/2 ] : 3/2

GIÚP MÌNH NỐT MÌNH CON ĐI NGỦ

Answer 1

a:\(=\left(\dfrac{3}{4}+\dfrac{2}{4}\right):\dfrac{3}{5}=\dfrac{5}{4}\cdot\dfrac{5}{3}=\dfrac{25}{12}\)

b: \(=\left(\dfrac{5}{6}-\dfrac{3}{6}\right):\dfrac{3}{2}=\dfrac{1}{3}\cdot\dfrac{2}{3}=\dfrac{2}{9}\)