Simplify the ratio 16 to 24?

To simplify the ratio 16 to 24, you need to find the greatest common divisor (GCD) of the two numbers, which is 8. Divide both numbers by 8 to simplify the ratio. Therefore, 16 divided by 8 is 2, and 24 divided by 8 is 3. The simplified ratio of 16 to 24 is 2 to 3.