Answer :
We have the following equation:
[tex]\frac{3}{5}x=\frac{2}{5}[/tex]and we need to find x. Then, by multiplying both sides by 5, we have
[tex]3x=2[/tex]and by dividing both sides by 3, we get
[tex]x=\frac{2}{3}[/tex]By comparing with the given options, the answer is B