Question

How do you divide factorials by lesser factorials again?

Answer 1

you can just divide them like normal fractions

Explanation:

Do it as if it was the same number over the same number

Answer 2

(answer in explanation)

Explanation:

so, whenever you divide factorials, as soon as you get it to be the same ! on the top and bottom of the fraction, they cancel out like any other fraction would.

So, lets say you're dividing 55! / 50!

55! can also be thought of as 55 x 54 x 53 x 52 x 51 x 50!

`(55*54*53*52*51*50!)/(50!)` = 55 * 54 * 53 * 52 * 51

Then you can simply solve the remaining equation

( 55 * 54 * 53 * 52 * 51 = 417,451,320)

hope this helps!!