ratios and proportions

Simplify the fraction: 12/27

• 9/4
• 27/12
• 4/9
• 1/2

Simplify the fraction: 7/21

• 7/14
• 1/3
• 21/7
• 3/1

What is it called when you set two ratios equal to each other?

• Proportion
• Fraction
• Ratio
• Congruent

Tags

CCSS.7.RP.A.2A

Solve the proportion.

• 18
• 3
• 2
• 9

Tags

CCSS.7.RP.A.2B

What is a Ratio?

• Is a comparison of two quantities 
• To multiply two fractions 
• A number over another number
• Two decimals that can be multiplied

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Which of these ratios is equivalent to 3:4?

• 12:9
• 9:20
• 9:12
• 803:804

Tags

CCSS.6.RP.A.3A

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 to 5
• 5 to 3
• 3 to 5
• 5 to 2

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

A class has 30 students. 18 are boys. What is the ratio of boys to girls?

• 12:18
• 3:2
• 30:18
• 18:7

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Solve the proportion:

• 4
• 8
• 14
• 10

Tags

CCSS.7.RP.A.2B

Enter the missing numbers to create equivalent ratios. 
1 : 3
6 : 18
2 : _
4 : _

• 4 & 8
• 4 & 12
• 6 & 12
• 6 & 8