-12 * * * * * Wrong! -4 minus -8 = -4 + 8 = +4
It is: 15-12-8 = -5
-4 - 8 = -12
-22 - 12 = -8
Negative 8 minus 12 is negative 20.
7
12-(-8) = 20
-4 minus -12 is 8.
11/12 minus 3/8 is 13/24
8/9 minus 7/12 is 11/36
It is: 3/8 minus 8/12 = -7/24
20 - 8 = 12