Question

6!*8!
----
7!*4!

Answer 1

any ideas?

Answer 2

8 240 480 and 12 over 7

Answer 3

you can rewrite a larger factorial as a product of a smaller factorial

Answer 4

so 7! = 7 * 6!
and 8! = 8 * 7 * 6 * 5 * 4!

Answer 5

know where to go from here?

Answer 6

not really :(

Answer 7

let's go back to our original problem and do the substitutions I made

Answer 8

do you see anything you can cross out in the numerator and denominator?