tolong dijawab no 7-10 pakai cara

5 3/5 : 4/7
= 28/5 * 7/4
= 49/5 = 9 4/5

7 1/2 : 3/5
= 15/2 * 5/3
= 25/2 = 12 1/2

6 3/4 : 9/14
27/4 * 14/9
42/4 = 10 1/2

2 3/4 : 3/11
11/4 * 11/3
121/12 = 10 1/2