Ratio and Proportion

What is a ratio?

• A ratio is a type of currency.

• A ratio is a measurement of time.

• A ratio is a qualitative relationship between two or more quantities.

• A ratio is a quantitative relationship between two or more quantities.

What is a proportion?

• A proportion is a statement that two ratios are equivalent.

• A proportion is a statement that two ratios are equal.

• A proportion is a statement that two ratios are not equal.

• A proportion is a statement that two ratios have a common denominator.

Simplify the ratio 4:6.

• 2:3

• 5:6

• 1:2

• 3:4

If a recipe calls for a ratio of 2 cups of flour to 3 cups of sugar, how many cups of sugar should be used if 4 cups of flour are used?

• 2

• 6

• 10

• 8

Convert the ratio 3:5 to a proportion.

• 5/3

• 35

• 3:5

• 3/5

If a car travels 240 miles in 4 hours, what is its rate in miles per hour?

• 45

• 60

• 30

• 90

Simplify the part-to-part ratio 8:12.

• 4:6

• 6:8

• 10:15

• 2:3

If a box contains 5 red marbles and 7 blue marbles, what is the part-to-whole ratio of red marbles to total marbles?

• 1/2

• 7/12

• 2/5

• 5/12

If a car travels 180 miles in 3 hours, what is its rate in miles per hour?

• 60

• 120

• 30

• 90

If a recipe calls for a ratio of 1 cup of sugar to 2 cups of flour, how many cups of sugar should be used if 6 cups of flour are used?

• 2

• 1

• 4

• 3