SOLUTION: Simplify the following: 1/5-9/10 over 7/10+5/2

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Question 542656: Simplify the following: 1/5-9/10 over 7/10+5/2
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
1%2F5=2%2F10
2%2F10-9%2F10=-7%2F10
5%2F2=25%2F10
7%2F10%2B25%2F10=32%2F10
when dividing by a fraction is same as multiplying by reciprical
%28-7%2F10%29%2F%2832%2F10%29
%28-7%2F10%29%2810%2F32%29 10s cancel
-7%2F32