SOLUTION: 3/4 - ? = 2/5

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Question 815883: 3/4 - ? = 2/5
Answer by doodles(24) About Me  (Show Source):
You can put this solution on YOUR website!
+3%2F4+-+x+=+2%2F5
So simply we solve for x by isolating it.
-x+=+%282%2F5%29+-+%283%2F4%29
-x+=+%288%2F20%29+-+%2815%2F20%29
-x+=+-%287%2F20%29
x+=+7%2F20
Now to do a check.
%283%2F4%29+-+%287%2F20%29+=+2%2F5
%2815%2F20%29+-+%287%2F20%29+=+2%2F5
8%2F20+=+2%2F5
2%2F5+=+2%2F5