Simplify 3!/5!

We call 3! 'three factorial' and 5! 'five factorial'.

3!=3x2x1

5!=5x4x3x2x1

So our fraction becomes:

(3x2x1) / (5x4x3x2x1) = 6/120

Then dividing the top and bottom by 6 we get:

1/20

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Answered by Max E. Maths tutor

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