The meaning of this question is not clear.
you should have shown us the second term :/
If the questioner doesn't mean that then he/she definitely hasn't provided enough information!
Alan, I am wondering,
Is there a relatively easy way to do this on a normal hand held calc?
OR the web2 calc.
I mean without doing each bit seperately?
One could use the general expression:
I just got Mathcad to obtain this. No doubt Wolfram Alpha would produce the same thing.
I think you could probably do 1/2 - 1/[(n+1)(n+2)] on a hand-held without too much difficulty.