How do you write the ratio 20 minutes to 2 hours in its simplest form?

To simplify the ratio 20 minutes to 2 hours, we need to convert both quantities to the same unit of time. Since there are 60 minutes in an hour, we can convert 2 hours to 120 minutes. The ratio then becomes 20 minutes to 120 minutes. To simplify further, we divide both numbers by their greatest common factor, which is 20. Therefore, the simplest form of the ratio 20 minutes to 2 hours is 1 to 6.