Question

TÍNH GIÁ TRỊ BIỂU THỨC :

\(2x\dfrac{2}{4}+\dfrac{3}{4}:\dfrac{1}{2}\)

Answer 1

`2xx2/4+3/4:1/2=4/4+3/4xx2=1+3/2=2/2+3/2=5/2`

Answer 2

2 x 2/4 + 3/4 : 1/2

= 1 + 3/2

= 5/2

Answer 3

\(2\times\dfrac{2}{4}+\dfrac{3}{4}:\dfrac{1}{2}=2\times\dfrac{1}{2}+\dfrac{3}{4}\times2=2\times\left(\dfrac{1}{2}+\dfrac{3}{4}\right)=2\times\dfrac{5}{4}=\dfrac{10}{4}=\dfrac{5}{2}\)