A poker hand consisting of 5 cards is dealt from a standard deck of 52 cards. Find the probability that the hand contains exactly 4 face cards. Leave your answer as a reduced fraction. The probability...

I set up as 12c4*40c4/52c4  what an i doing wrong?

Extracted text: A poker hand consisting of 5 cards is dealt from a standard deck of 52 cards. Find the probability that the hand contains exactly 4 face cards. Leave your answer as a reduced fraction. The probability is