SOLUTION: if the numerator is increased by 200% and its denominator is decreased by 150% the resultant fraction is 7/10.what is original fraction?

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Question 896079: if the numerator is increased by 200% and its denominator is decreased by 150% the resultant fraction is 7/10.what is original fraction?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
if the numerator is increased by 200% and its denominator is decreased by 150% the resultant fraction is 7/10.
what is original fraction?
:
When you increase something by 200 per cent you get 3 times the original
When you decrease something by 100% you get 0, another 50% you neg 1/2 of orignal
:
%283n%29%2F%28-.5d%29 = 7%2F10
Cross multiply
30n = -3.5d
n = %28-3.5d%29%2F30
Only found one solution where the numerator and denominator were integers
-35%2F300