At first, to convert 21 minutes to hours and minutes, we have to convert 21 minutes into hours.
To change 21 minutes into its equivalent number of hours and leftover minutes, we first need to calculate the total hours component of the 21 minutes by performing division by the constant 60 minutes per hour.
21 minutes / 60 minutes
⇒ 21 minutes x 1/60 hours = 0.35 hours [as 1 minute = 1/60 hours]
Now from the above number we come to know that the whole number part which is in the left side of the decimal point is the number of hours which is 0.
Therefore the number of hours = 0
Now we have to find out the remaining minutes. To acheive this we can simply take the decimal part 0.35 and convert it into minutes. In this case we need to convert 0.35 hours in minutes to calculate the remaining minutes. For this we need to muitiply 0.35 hours by 60 minutes.
0.35 hours X 60 minutes = 21 minutes
Hence, combining the values of hours and minutes calculated above, we can conclude that
21 minutes = 0 hour and 21 minutes
Therefore the final result for the query 21 minutes in hours and minutes is equivalent to 0 hour and 21 minutes.