Hi and thank you for your help.

Question

Find the value of the following:
11!6! over 12!4!
If your answer is not an integer, write it as an exact fraction.

Thank you again

Answer 1

If you wrote out all the numbers for top and bottom...such

(11,10,...1) (6,5...1)/(12,11,10...1!(4,3...1)

cross out ever number than matches o the top and bottom. when finish you should have 6 and 5 left on the top and 12 left on the bottom

6*5/12

The answer should be 2.5