The least common denominator of two fractions is 20. If you subtract the two denominators their difference is 1. What are the denominators?

Answer 1

Hi Kelly,

If you had two fractions whose denominators were 4 and 5, the least common denominator would be 20.

The difference of 5 and 4 is 1 as well (5 - 4 = 1).

Hope this helps Kelly. Let me know if you have more questions or would like to schedule a lesson (online if you prefer).

Take care.