SOLUTION: Subtract. Express your answer in simplest form. 2/5 - y/y-2

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Question 85431: Subtract. Express your answer in simplest form.

2/5 - y/y-2
Answer by scianci(186) About Me  (Show Source):
You can put this solution on YOUR website!
You need an LCD. In this case, that'd be 5(y - 2):
2%2F5 = %282%28y+-+2%29%29%2F%285%28y+-+2%29%29
y%2F%28y+-+2%29 = 5y%2F%285%28y+-+2%29%29
%282%28y+-+2%29%29%2F%285%28y+-+2%29%29 + 5y%2F%285%28y+-+2%29%29
%282y+-+4%29%2F%285%28y+-+2%29%29 + 5y%2F%285%28y+-+2%29%29 =
%287y+-+4%29%2F%285%28y+-+2%29%29