5/16+11/12=15/48+44/48=59/48
7/24-5/18=21/72-20/72=1/72
10/12+11/12= 21/12
21/72-20/72=1/72
28/140+5/140=33/140
22/126-15/126=7/126
5/16+11/12=15/48+44/48=59/48
7/24-5/18=21/72-20/72=1/72
10/12+11/12= 21/12
21/72-20/72=1/72
28/140+5/140=33/140
22/126-15/126=7/126