Answer:5 hrs 11 min 26 seconds
Step-by-step explanation:
7 hrs 15 min 12 s
-2 hrs 3 mins 46 s
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start on the right
we need to borrow from the minutes since we need more seconds
1 minute = 60 seconds
15-1 = 14 minutes
12+60 = 72seconds
now every number on the top line is bigger than on the bottom line so we can subtract
7 hrs 14 min 72 s
-2 hrs 3 mins 46 s
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5 hrs 11 min 26 seconds
