Adding Mixed Numbers

Question 1:

5 4 5 + 2 5 6
259 30 = 8 19 30

Question 2:

2 1 4 + 1 1 2
15 4 = 3 3 4

Question 3:

4 1 6 + 4 2 3
53 6 = 8 5 6

Question 4:

2 7 9 + 3 7 10
583 90 = 6 43 90