Question

What number would I need to divide the numerator and denominator by to simplify 12/18

4, 6, 36, 9. this number is the numerator, denominator, greatest common factor, least common mutiple.

Answer 1

Answer: 6

This is the GCF of the numerator and denominator

`(12)/(18) = (12/ 6)/(18/ 6) = (2)/(3)`

For visual learners, imagine a pizza split into 18 slices. Take 12 of them and you'll have 2/3 of the whole thing. See below.

Notice each third consist of 6 slices, which is exactly what we're dividing by in the previous section above.