Question

tìm x  2 : x- 1/3 =2/5

Answer 1

\(2:x-\dfrac{1}{3}=\dfrac{2}{5}\\ 2:x=\dfrac{2}{5}+\dfrac{1}{3}\\ 2:x=\dfrac{6}{15}+\dfrac{5}{15}\\ 2:x=\dfrac{11}{15}\\ x=2:\dfrac{11}{15}\\ x=2\times\dfrac{15}{11}\\ x=\dfrac{30}{11}\)

Answer 2

`2:x-1/3=2/5`

`=>2:x=2/5+1/3`

`=>2:x=6/15+5/15`

`=>2:x=11/15`

`=>x=2:11/15`

`=>x=2xx15/11`

`=>x=30/11`

Answer 3

x=2/5+1/3=6/15+5/15=11/15