tolong yg bisa d jawab y,terima kasihh

1. 4/12, 6/18
2. 6/18, 9/27
3. 10/20, 20/40
4.12/16, 18/24
5.8/20, 16/40
6. 18/24, 27/36

1.1/3,4/12
2.1/3,6/18
3.1/2,10/20
4.3/4,12/16
5.2/5,8/20
6.3/4,18/24
7.4/7,16/28
8.1/3,2/6
9.2/3,4/6
10.2/3,20/30
maaf kalo salah