1. Ryan had 12 blue marbles, 8 red marbles, and 3 green marbles. What is the ratio of green marbles to blue marbles? Remember to simplify your answer if you can.
The ratio of green marbles to blue marbles is 3:12. To simplify this ratio, we can divide both numbers by their greatest common divisor, which is 3.
3 ÷ 3 = 1
12 ÷ 3 = 4
The simplified ratio is 1:4.