[pudley4]

First of all, when adding fractions, you do not add the top numbers and bottom numbers together.

Second, the easiest way to figure out most of these questions is to figure the probability of not catching on the flop, then subtract that number from 1.

The probability of not catching an A or K on the flop if you have AK is:

44/50 * 43/49 * 42/48 = .676

Subtract this from 1 and you get .324 = 32.4% chance at least one A or K is on the flop.