Question 691801
The LCD of the fractions 2/x, 3/xy, 3/x^2 and 1/5 is 5x^2y


Multiply this LCD with EVERY fraction listed above


(2/x)*(5x^2y) = 10x^2y/x = 10xy


(3/xy)*(5x^2y) = 15x^2y/xy = 15x


(3/x^2)*(5x^2y) = 15x^2y/x^2 = 15y


(1/5)*(5x^2y) = 5x^2y/5 = x^2y


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So after all that above, we go from this ugly expression 


<pre>
2/x + 3/xy
----------
3/x^2 + 1/5 
</pre>


to this nicer looking expression


<pre>
10xy + 15x
-----------
15y + x^2y
</pre>


and that's as simple as it gets because you can't cancel out any more terms.