Question

What is 72+30 as the sum of the numbers as there GCF?

Answer 1

`72+30=6xx(12+5)`

Explanation:

Factors of `72` are `72=2xx2xx2xx3xx3` and of `30` are `30=2xx3xx5`

As such GCF is `2xx3=6`

and `72=6xx12` and `30=6xx5`

Hence `72+30=6xx12+6xx5=6xx(12+5)`