Bless your heawrt, this problem is completely insane (unless I missed some trick, which I don't really think so since it is simply rational functions), and the numbers involved in it make it a problem that may take above 40 minutes at least to do if you don't make any mistake in the way and you know perfectly well all your

theory....

Anyway, the denominator is just , so this already is a mess...good luck!

Tonio