7/15 < 22/45
21/45 < 22/45;
31/54 < 17/27
31/54 < 34/54;
5/18 < 11/36
10/36 < 11/36;
3/4 > 9/16
12/16 > 9/16.
7/15 < 22/45
21/45 < 22/45;
31/54 < 17/27
31/54 < 34/54;
5/18 < 11/36
10/36 < 11/36;
3/4 > 9/16
12/16 > 9/16.