SOLUTION: Problem 25 I got wrong.Thank You!! <a href="http://imageshack.us"><img src="http://img232.imageshack.us/img232/5246/25mk0.jpg" border="0" alt="Image Hosted by ImageShack.us" /><

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Question 46252: Problem 25 I got wrong.Thank You!!
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Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Simplify:
%285-%28a%2Fb%29%29%2F%2815%2Fb%29
Simplify the numerator first:
5-%28a%2Fb%29+=+%285b-a%29%2Fb You get this by putting the fractions over a common denominator, then subtracting. The common denominator is b. The second fraction is already over b so don't change it.
To get the first fraction over b you multiply the 5 by b%2Fb to get 5b%2Fb. Now you have both parts over the common denominator of b and you can subtract.
5-%28a%2Fb%29+=+%285b-a%29%2Fb
So now you have:
%28%285b-a%29%2Fb%29%2F%2815%2Fb%29
Remember, to divide two fractions, you copy the first, flip the sign from divide to multiply, and flip (invert) the second fraction. So it now becomes:
%28%285b-a%29%2Fb%29%2A%28b%2F15%29 Cancel the b's
%285b-a%29%2F15...and this is as far as you can go!