Respuesta :
well If you are trying to solve by subtracting then ill help
7:45 - 12:30 = - 4.85
hoped I helped !
If you are doing 7.45 - 12.30 the answer should be 5:15, if this is based on time.
or it would be - 4.85 not time-wise.
or it would be - 4.85 not time-wise.