Final answer:
To convert 81 minutes into hours and minutes, divide by 60 to find the whole hours and take the remaining minutes.
Step-by-step explanation:
To convert 81 minutes into hours and minutes, you can use the fact that there are 60 minutes in an hour. First, divide 81 by 60 to find the number of whole hours. In this case, you would have 1 hour. Next, you can take the remaining minutes after finding the hours. In this case, there are 21 minutes left. Therefore, 81 minutes is equivalent to 1 hour and 21 minutes.
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