1.5/16-3/8= 2.7/8-1/12-3/48= 3.17/4-17/8-10/3= 4.876,87-12,456-123,876=

1. 5/16-3/8= 40/48-18/48=22/48=11/24
2. 7/8-1/12-3/48= 42/48-4/48-3/48=35/48
3. 17/4-17/8-10/3= 102/24-51/24-80/24= -29/24= -1 5/24
4. 876,87-12,456-123,876= 864,414-123,876=740,538