Question #13af9

2 Answers
Jan 31, 2018

It is in simplest form.

Explanation:

Both the numerator (13) and the denominator (20) have to be composite in order to be simplified, but 13 is prime.

Jan 31, 2018

The fraction is already in its simplest form.

Explanation:

A fraction is in its simplest form when the GCF between the numerator and the denominator is 1.

Since #13# is prime, there is a higher chance of the fraction being in its simplest form. However, this never guarantees the fact.
(e.g. #13/26# can be simplified to #1/2#)

Instead, we try to find the GCF between #13# and #20#

We see that #13# has factors #1,13# and #20# has #1,2,4,5,10,20#

We now see that #13# and #20# share #1# as their only common factor.

Therefore, #13/20# is in its simplest form.