Question

Subtract. 7h 15min 12s--2h 3min 46s=


if you do this u get 18 points

Answer 1

Answer:5 hrs 11 min 26 seconds

Explanation:

7 hrs 15 min 12 s

-2 hrs 3 mins 46 s

------------------------------

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

-----------------------------

5 hrs 11 min 26 seconds

Answer 2

5 hrs 11 min 26 seconds

Explanation:

7 hrs 15 min 12 s

-2 hrs 3 mins 46 s

------------------------------

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

-----------------------------

5 hrs 11 min 26 seconds