How to you solve 1-(2/5 + 1/5)N/A

Whenever you are solving an equation, you have to do the part that is inside the parenthesis first.  So in this case, you have to add 2/5 and 1/5.  That, of course, gets you 3/5.  You can just add the top parts of the fraction together as long as the bottom parts are the same.

So now the equation is simply 1-3/5.  Of course, 1 is equal to 5/5.  So you can write this as 5/5-3/5.  Again, you can simply subtract the top parts of the fractions as long as the bottom parts are the same.

That comes out to 2/5, which is the answer to this question as a whole.