Question

subtract 7 horse 23 min 30 seconds from 9 horse 21 minutes 10 seconds​

Answer 1

Answer:

2hour,12min and 20 sec

Step-by-step explanation:

it simple subtract the values which have same unit.

9-7=2hour

21-9=12min

30-10=20

Answer 2

Answer:

2 hours 2 minutes 20 seconds

Step-by-step explanation:

Align the numbers.

H          M         S

9          23        30

7          21         10   (-)

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2          02         20

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