Question 134474
add and simply this problem?  thank you!

12/x^2y+5/xy^2
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the least common denominator is x^2y^2
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Rewrite each fraction with the lcm as its denominator:

12y/lcm + 5x/lcm

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Add to get:

(12y+5x)/lcm

Rewrite:

(12y + 5x)/ x^2y^2
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Cheers,
Stan H.