What are two mixed numbers with different denominators that have a sum of three and four fifths?

Two mixed numbers with different denominators that add up to three and four-fifths are 2 and 1/5, and 1 and 3/5. When you add 2 + 1/5 and 1 + 3/5, you get 3 + 4/5, which equals three and four-fifths.