-45 - 30 = -75
23 hours 15 minutes minus 45 minutes is 22 hours 30 minutes.
-30
5:15 - 3:45 = 1:30
1 hour 45 minutes.
1 hour 45 minutes.
(20 hours 30 minutes) - (5 hours 45 minutes) = 14 hours 45 minutes.
45
Minus 45 minutes.
1 hour 15 minutes
6 hours 15 minutes.
45 minus -16 is 61.
45 minus -50 is 95.