Ratios and Proportions Review

What is a Ratio?

• A comparison of two quantities 

• To multiply two fractions 

• A number over another number

• Two decimals that can be multiplied

Is this proportion equal?
1/3     4/12

• =

• ≠

Is this proportion equal?
4/5  20/25

• =

• ≠

Ella has 5 balloons. Taylor has 7 balloons. Write the ratio of Ella's balloons to Taylor's balloons.

• 7:5

• 5:7

• 3:5

• 5:3

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

The cookie jar has six chocolate chip cookies and five oatmeal cookies. What is the ratio of oatmeal to chocolate chip cookies?

• 6:5

• 5:6

• 6:11

• 6:11

A proportion is a

• ratio statement

• an "if-then" statement

• a statement of 2 ratios that are equal to each other

• a comparison

If there are 5 boys and 7 girls, write the ratio of girls to boys.

• 5 to 7

• 7 to 5

• 5 to 12

• 7 to 12

Ten soccer players were going to a soccer tournament with their three coaches. What is the ratio of coaches to players? 

• 10 : 3

• 10:13

• 3 : 10

• 3:13

To disinfect 1 quart of stream water to make it drinkable, you need to add 2 tablets of iodine. How many tablets do you need to disinfect 4 quarts?

• 4 tablets

• 5 tablets

• 6 tablets

• 8 tablets