Best Answer

1 hour = 60 minutes = 60*60 seconds = 3600 seconds

So 20 seconds, as a fraction of an hour = 20/3600 = 1/180

Q: What fraction of an hour is 20 seconds?

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Assuming that what is meant is what fraction or percentage of an hour is 20 seconds, then there is 60 seconds in a minute and 60 minutes in an hour so therefore there is 60 x 60 seconds on an hour. 20 seconds divided by 360 seconds gives 1/18th or 0.05556 05 5.56% of an hour.

There are 60 seconds in a min. and 60 mins. in an hour = 3600 seconds in an hour. 19 seconds is therefore 19/3600 of and hour.

1/5 of an hour.

It is: 60 seconds = 1 minute which is 1/60 of an hour

1/30

Related questions

It is: 20/(60*60) = 1/180 of an hour

Assuming that what is meant is what fraction or percentage of an hour is 20 seconds, then there is 60 seconds in a minute and 60 minutes in an hour so therefore there is 60 x 60 seconds on an hour. 20 seconds divided by 360 seconds gives 1/18th or 0.05556 05 5.56% of an hour.

There are 60 seconds in a min. and 60 mins. in an hour = 3600 seconds in an hour. 19 seconds is therefore 19/3600 of and hour.

1/5 of an hour.

It is: 60 seconds = 1 minute which is 1/60 of an hour

5/8

The fraction of 8 seconds/ 1 hour = 8 seconds/ 60 minutes = 8 seconds/ 3600 seconds. This would mean that 8 seconds is 1/ 450 of a hour and that 8 seconds is 0.222% of a hour.

1/30

3/4

1/100

2/5

4,800 seconds in 1 hour 20 minutes.