Hi, long-time lurker, first time poster

The problem is this: find the limit of Sum[(i^2/(n^3 + i^3))] (going from i=1 to n) as n approaches infinity. Sorry I don't know how to write fancy math text but basically it's the limit of a series going to n as n --> infinity.

I figure it's probably a riemann sum question, but I tend to have difficulty with those. Any help would be nice