Simplify this expression?

[Lucas]

5x^3y^-4
-------------------
2x^-2y^2

 

[litterbug_kid]

5/2x^(3y^-4+2y^2)

I think

 

[como]

5 x^5
---------
2 y^6

 

[litterbug_kid]

5/2x^(3y^-4+2y^2)

I think

 

[como]

5 x^5
---------
2 y^6