Add.

4 5/7 + 3 3/4 =

My answer is 7 41/28 ... Is this correct?

In order to find the correct answer you need to have the same denominator. Change them to improper fractions:

4 5/7 = 33/7

3 3/4 = 15/4

To get the same denominator find the lcm.

You were right with that, 28.

To even this out multiply 33 by 4, 132. 132/28

15*7 = 105. 105/28

132/28 + 105/28 = 237/28

237 divided by 28 = 8 13/28

Yes 7 41/28 correct answer