Ratios and Proportions

What is the ratio to the picture shown, triangles to squares?

• 2:6
• 5:6
• 3:4
• 4:3

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

If Mr. Smith gives 6 homework assignments every 2 weeks, how many homework assignments would he give in a 9 weeks? 

• 54
• 6
• 18
• 27

Express 45 to 90 in its lowest term.

• 3 : 4

• 2 : 3

• 1 : 2

• 5 : 9

In a class there are 30 boys and 12 girls. Find the ratio of number of boys to number of girls.

• 2 : 5
• 5 : 2
• 3 : 4
• None of the above

Answer should be in simplest form.

4 boys to 10 girls

• 5:2

• 2:5

• 4:5

Answer should be in simplest form.

10 eggs to 20 breads

• 1:2

• 10:20

• 2:1

Answer should be in simplest form.

3 ribbons to 13 ties

• 3:13

• 13:3

• 3:3

2:3 = 4:6

• Proportion

• Not Proportion

9:3 = 1:9

• Proportion

• Not Proportion