Subtracting Mixed Numbers

Question 1:

5 5 8 - 1 4 5
153 40 = 3 33 40

Question 2:

2 7 9 - 2 1 2
5 18

Question 3:

4 4 5 - 4 5 9
11 45

Question 4:

5 1 10 - 4 1 8
39 40