What is the sum of 2 over 5 and 3 over 4?

Well, honey, to find the sum of 2 over 5 and 3 over 4, you first need to get a common denominator, which is 20 in this case. Then, you add the numerators together to get 11 over 20. So, the sum is 11 over 20. Math doesn't have to be a drag, darling!