Question

car is 9 feet long and the model is 6 inches long. What is the ratio of the length of the car to the length of the model?

Answer 1

c:m=(9*12):6 (we needed to convert 9ft to inches for the ratio to compare equal units)

c:m=108:6

c:m=18:1

Answer 2

The answer is 18:1, since you're trying to simplify the ratio from feet to inches. 6 inch = 1/2 feet. Multiply 9 by 2 to get the total "1/2 feet" required to balance the ratio.