Break down the numerator and denominator into prime factors.
5/7
To write the fraction in its simplest form, we begin by breaking down the numerator and denominator into prime factors.
20/28=2 * 2 * 5/2 * 2 * 7
Both numbers share the factors 2 and 2. The product of these numbers, 4, is the greatest common factor (GCF) of the fraction. Reducing the numerator and denominator by the GCF will give us the fraction's simplest form.
