CU 3 IU 7 Ratios and Proportions

Express the ratio as a fraction in simplest form:
18 ounces to 3 cups

• 6 to 1
• 1/6
• 18/3
• 3/18

Which is NOT equivalent to 3:5?

• 15:25
• 9:15
• 21:28
• 30:50

What is a Ratio?

• Is a comparison of two quantities 
• A rate with a denominator of one
• It is when the only factor the numerator and denominator share is a one 
• Two decimals that can be multiplied

• 20 pencils
• 24 pencils
• 96 pencils
• 48 pencils

21. Optimus Prime is using a double number line to determine the amount of raisins he will use for a raisin bread recipe.
  If he uses   9 cups of raisins, how many loaves will he make?

• 4
• 5
• 6
• 7

Jose swims 3 laps in a pool every 2 minutes. How long would it take him to swim 27 laps?

• 8 minutes
• 9 minutes
• 16 minutes
• 18 minutes

What is the ratio of red apples to green apples

• 7 apples to 3 green
• 4 red apples to 7 apples
• 4 red apples to 3 green apples
• 3 green apples to 4 red apples

Patrick has 2 black, 3 red, and 5   white toy cars. What is the ratio of red toy cars to all the toy cars? 

• 3:5
• 1:3
• 3:11
• 3:10

A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red to yellow?

• 2:5
• 5:3
• 3:5
• 5:2

Which ratios are proportional?

• 10/20  20/40
• 10/17  20/40
• 13/18   16/25
• 1/4        1/3