Ratios Big Ideas

Choose ALL of the ratios that are equivalent to 2:1.

• 2/4

• 4/2

• 6:2

• 8 to 4

• 120 to 60

The tape diagram represents the ratio of the times you spend tutoring to the time your friend spends tutoring. You tutor for 3 hours. How many hours does your friend spend tutoring?

• 3

• 4

• 12

• 16

What is the ratio of potatoes to vegetables?

• 3/8

• 3:5

• 8 to 3

• 5 to 3

Determine if the following ratios are equivalent.

3:4 and 9:12

• Yes

• No

Determine if the following ratios are equivalent.

5/3 and 15/12

• Yes

• No

How do you know that these ratios are equivalent?

• They are both proper fractions.

• They both are divided by 6.

• They are NOT equivalent.

• The numerator and denominator are multiplied by the same number making them equivalent.

What number would correctly fill in the ratio to make it equivalent?

• 12

• 9

• 18

• 24

You and your friend tutor for 18 hours. If the ratio of hours tutored by you to your friend is 2:4, how many hours do you tutor?

• 6

• 3

• 9

• 18

What is the ratio of squares to circles?

• 3:6

• 3 to 7

• 7/3

• 6 out of 3

Find the missing value in the ratio table. Then write the equivalent ratios

Miles:    8          ____         

Hours: 3/4        3/8          

• 4

• 2

• 6

• 8