Question

12 hours 45 min + 3 hours 39 min

Answer 1

first we have add this equation then answer is 15hours84minuts or 16hours24minuts

Answer 2

12 hours 45 minutes+3 hours 39 minutes

= (12×60)min + 45 min +(3×60)min + 39min

= 720+45+180+39

= 984 min

= 984/60

= quotient 16 and remainder 24

= 16 hours and 24 minutes

the answer is 984minutes or 16 hours 24 minutes.

hope it helps.