Sagot :
1. 2/4 :
4/8 = 6/12 = 8/16
2. 5/10 :
10/20 = 15/30 = 20/40
3. 4/5 :
8/10 = 12/15 = 16/20
4. 3/9 :
6/18 = 9/27 = 12/36
5. 2/5 :
4/10 = 6/15 = 8/20
6. 8/10 :
16/20 = 24/30 = 32/40
7. 3/5 :
6/10 = 9/15 = 12/20
8. 2/8 :
4/16 = 6/24 = 8/32
9. 3/7 :
6/14 = 9/21 = 12/28
10. 6/8 :
12/16 = 18/24 = 24/32
Hope it helps.