Write the ratio as a fraction in lowest terms.

39 minutes to 5 hours

To find the ratio of 39 minutes to 5 hours, we need to convert the time to the same unit. Since there are 60 minutes in an hour, 5 hours is equal to 5 x 60 = 300 minutes.

Therefore, the ratio of 39 minutes to 5 hours is 39/300, which can be simplified to 13/100 by dividing both numerator and denominator by 3.

So the ratio is 13/100.