Converting smaller unit of time to bigger unit of time
1) Convert 249 hours into days
Ans) as we all know 24 hours = 1 days
So, 24 ) 249 ( 10
240
---------
9
So, 249 hours = 10 days 9 hours
2) convert 1290 minutes into hours
Ans.) as we all know 60 minutes = 1 hour
So, 60 ) 1290 ( 21
120
----------
90
60
--------------
30
So, 1290 minutes = 21 hours 30 minutes