Question

3/5+5/2:5/6-1/2:5/6=
(nêu cách làm)

Answer 1

`=(3)/(5)+((5)/(2)-(1)/(2)):(5)/(6)`

`=(3)/(5)+2:(5)/(6)`

`=(3)/(5)+(12)/(5)=(15)/(5)=3`

Answer 2

\(=\dfrac{3}{5}+\dfrac{5}{2}.\dfrac{6}{5}-\dfrac{1}{2}.\dfrac{6}{5}=\dfrac{3}{5}+\dfrac{6}{5}.\left(\dfrac{5}{2}-\dfrac{1}{2}\right)=\dfrac{3}{5}-\dfrac{6}{5}.2=0\)