Tolong jawab No 8 9 10 dan 11 yah dengan caranya

8. 9-4 4/9
=9/1 - 4 4/9
=81/9- 40/9
=41/9
=4 5/9

9.10 3/8 - 5 5/6
=10 9/24 - 5 20/24
=9 33/24 - 5 20/24
= 4 13/24

10.4 3/7 - 3 1/2
=4 6/14- 3 7/14
=3 20/14 - 3 7/14
=13/14

11. 12 1/2- 5 1/3
=12 3/6 - 5 2/6
=7 1/6