Multiplying Mixed Numbers

Question 1:

1 1 5 ×11 1 4
6 3 5 1 × 45 9 4 2 = 27 2 = 13 1 2

Question 2:

5 1 4 ×1 5 7
21 3 4 1 × 12 3 7 1 = 9 1 = 9

Question 3:

5 1 3 × 9 20
16 4 3 1 × 9 3 20 5 = 12 5 = 2 2 5

Question 4:

10 1 2 ×1 5 7
21 3 2 1 × 12 6 7 1 = 18 1 = 18