SOLUTION: Subtract. Express your answer in simplest form. 2/5 - y/y-2 my answer -3y-4/y-2

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Question 84362: Subtract. Express your answer in simplest form.
2/5 - y/y-2
my answer -3y-4/y-2
Answer by tutor_paul(519) About Me  (Show Source):
You can put this solution on YOUR website!
2%2F5-y%2F%28y-2%29
Like any addition or subtraction of fractions, you need to find the LCD. The LCD is this case is:
LCD=5%28y-2%29
So rewrite the fractions as follows:
%282%28y-2%29%2F5%28y-2%29%29-%285y%2F%285%28y-2%29%29%29
Notice how the value of each fraction did not change.
Now that you have a common denominator, you can do the subtraction:
%282y-4-5y%29%2F%285%28y-2%29%29
Simplifying...
%28-3y-4%29%2F%285y-10%29
And you are done.
Good Luck,
tutor_paul@yahoo.com