Subtracting Mixed Numbers

Question 1:

5 1 3 - 2 5 8
65 24 = 2 17 24

Question 2:

5 5 8 - 3 2 3
47 24 = 1 23 24

Question 3:

3 2 9 - 1 1 2
31 18 = 1 13 18

Question 4:

2 9 10 - 2 3 4
3 20