5/7=30/42; 5/6=36/42; 5/7>5/6
5/8=15/24; 7/12=14/24; 5/8>7/12
7/9=14/18; 5/6=15/18; 7/9<5/6
11/18=22/36; 7/12=21/36; 11/18>7/12
5/7=30/42; 5/6=36/42; 5/7>5/6
5/8=15/24; 7/12=14/24; 5/8>7/12
7/9=14/18; 5/6=15/18; 7/9<5/6
11/18=22/36; 7/12=21/36; 11/18>7/12