Ratios and Proportional Reasoning

Which of the following is NOT a way to write a ratio?

• 1 to 2
• 1:2
• 1 from 2
• 1/2

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

There are 13 boys and 10 girls in the classroom.  What is the ratio of boys to girls?

• 10 to 13
• 23 to 13
• 13 to 10
• 23 to 10

What is an equivalent ratio to 3/4?

• 1/4
• 4/5
• 12/16
• 14/18

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

In the fruit bowl there are 4 apples, 2 bananas, and 5 pears.  What is the ratio of pears to ALL fruit?

• 5:4
• 5:11
• 2:5
• 6:5

Which is NOT equivalent to 3:5?

• 15:25
• 9:15
• 21:28
• 30:50

The pet shop has 2 dogs, 4 cats, and 5 hamsters. What is the ratio of dogs to all pets?

• 2:4
• 2:5
• 2:11
• 11:2

Simplify the ratio 25:30

• 10:15
• 8:9
• 5:6
• 6:5

The math club took a field trip. There were 3 adults for every 7 students on the trip. A total of 40 people went on the trip. How many adults were on the field trip?

• 9
• 12
• 15
• 18