It is: 1-5/11 = 6/11
1 minus 11/21 = 10/21
1 minus 11/24 is 13/24
11/12 minus 1/16 is 41/48
11/30 - 1/5 - 1/6 = 0
It is -1/11
12 minus 11 1/6 is 5/6
11/12 minus 7/12 is 1/3
19/20 minus 11/12 = 1/30
3/4 minus 1/5 is 11/20
1/2 minus 5/32 is 11/32
11/16 − 1 = -5/16
1/4 − 10/11 = -29/44