12
It is: 15-12-8 = -5
-5 - 10 = -15
15
2/5 minus 1/15 is 1/3
-15
I think you mean "What does negative 10 minus 5 equal?" If not, please correct me. But, the correct answer would be -15 or negative 15.
(12-15)/5 = -3/5
3/5 minus 2/15 is 7/15.
It is: 4/5 minus 4/15 = 8/15
15
Negative 15 minus 5 can be solved by subtracting 5 from -15. This results in -20, as subtracting a positive number from a negative number increases the magnitude of the negative value. In mathematical terms, -15 - 5 = -20.