Odd one out
12/30
2/5
4/10
9/20
Odd one out
5/6
55/66
40/56
15/18
Odd one out
2/3
22/33
16/24
16/21
Odd one out
12/16
21/24
3/4
75/100
Odd one out
2/4
6/12
14/26
4/8
Odd one out
1/4
4/16
7/24
3/12
Odd one out
8/21
5/15
1/3
6/18
Odd one out
3/8
15/40
21/54
36/96
Odd one out
42/60
21/30
72/90
7/10
Odd one out
80/100
32/45
4/5
24/30
Odd one out
8/54
1/6
3/18
5/30
Odd one out
25/40
60/100
125/200
5/8
Odd one out
7/9
164/216
175/225
21/27
Odd one out
24/40
27/35
3/5
21/35
Odd one out
28/49
8/15
4/7
12/21