7 over 8 = 7/8 = .875
1 and a half = 1.5 = 3/2 = 1.5
.875 - 1.5 = -.625
or (this is the way i do it)
you change 1/2 to 4/8 so it becomes 7/8-4/8. so 7-4 is 3. so the answer is 3/8
5 over 8
1 minus 1/2 minus 1/3 is equal to 0.166667
1/3 minus 1/2 is -1/6
1 minus a half is a half.
1 over 2
5 over 8
1 minus 1/2 minus 1/3 is equal to 0.166667
1/3 minus 1/2 is -1/6
3/4 minus 1/2 is 1/4.
1/2
5 and 1/2
1 minus a half is a half.
11/30 - 1/5 - 1/6 = 0
1 over 2
It is: 1/2
2 minus 2/5 plus 1/2 minus 4 = -1.9
0.27