3:30 → 1:10 (taking 3 as common)
12:16 → 3:4 (taking 4 as common)
14:28 → 1:2 (taking 14 as common)
15:5 → 3:1 (taking 5 as common)
24:40 → 3:5 (taking 8 as common)
66:11 → 6:1 (taking 11 as common)
2:8 → 1:4 (taking 2 as common)
20:40 → 1:2 (taking 20 as common)