Adding Mixed Numbers

Question 1:

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

Question 2:

5 1 6 + 2 3 10
224 30 = 7 14 30 = 7 7 15

Question 3:

2 5 9 + 3 3 7
377 63 = 5 62 63

Question 4:

4 5 6 + 3 2 7
341 42 = 8 5 42