I need to find E[Y/X=x] and E[X/Y=y] for

f(x,y)=24xy (x,y) is region bounded by y=x^2 and y=x.

I'm having trouble deciding on the limits of integration for the two relevant integrals:

yf(y/x)dx and xf(x/y)dy

how do I find the limits for the integrations above?

(I apologise for my lack of LaTex!)