30/60=1/2
1/2/60
=1/120
so it's 1/120.
If 1 minute or 60seconds is 1/60 of an hour, so 30 seconds must be 1/120.
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1 hour = 100% 1 minute in an hour = 1/60 therefore 30 seconds in an hour = 1/120
1/30
1 hour = 3600 seconds 30 minutes = 1800 seconds 1 hour + 30 minutes = 5400 seconds
1/5 of an hour.
It is: 60 seconds = 1 minute which is 1/60 of an hour