SOLUTION: Can anyone explain why ab/a-b is in simplest form? Why can't the a's and b's cancel out and leave -1? Thanks

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Question 886747: Can anyone explain why ab/a-b is in simplest form? Why can't the a's and b's cancel out and leave -1? Thanks
Answer by MathTherapy(10555) About Me  (Show Source):
You can put this solution on YOUR website!

Can anyone explain why ab/a-b is in simplest form? Why can't the a's and b's cancel out and leave -1? Thanks 


Why is so DIFFICULT to use parentheses? Are you all allergic to parentheses?

Is this: ab%2F%28a+-+b%29, or ab%2Fa+-+b? 

If the former, it CANNOT be simplified further. If the latter, then ab%2Fa+-+b becomes: %28ab+-+ab%29%2Fa, which is 0.