To simplify the fraction 27/36, we need to find the greatest common factor (GCF) of the numerator and denominator. The GCF of 27 and 36 is 9.
Dividing both the numerator and denominator by 9, we get:
27/36 = (27 ÷ 9) / (36 ÷ 9) = 3/4
Therefore, 27/36 in its simplest form is 3/4.