It is: 15/3600 = 1/240 in its lowest terms
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To find the fraction of a minute in 15 seconds, we first need to determine how many seconds are in a minute, which is 60 seconds. Therefore, the fraction of a minute in 15 seconds is 15/60, which simplifies to 1/4. This means that 15 seconds is equivalent to one-fourth of a minute.
A quarter hour = 15 minutes = 15*60 = 900 seconds.
2/5
Divide seconds by 3,600. So, 15 seconds = 15 / 3,600 = 0.004167 hour
It is: 20/(60*60) = 1/180 of an hour