Introduction to Ratio

What is a Ratio?

• Is a comparison of two quantities

• To multiply two fractions

• Strictly a fraction

• Two decimals that can be multiplied

Which represents the relationship of oranges to fruit?

• 2:6

• 2:4

• 4:6

• 4:2

Tell if the ratio is part-to-part or part-to-whole.
4 apples to 3 oranges

• Part-to-Part

• Part-to-Whole

Tell if the ratio is part-to-part or part-to-whole.
In a a mini bag of M&Ms, there are 16 M&Ms and 5 of them are red.

• Part-to-Part

• Part-to-Whole

A ratio can be written as all the ways below EXCEPT which one?

• 3=4

• 3:4

• 3 to 4

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

Tommy has a bag of LEGOS. There are 6 yellow, 3 red, and 8 blue LEGOS. What is the ratio in simplest form of red to yellow LEGOS?

What is the ratio of monkeys to bananas?

• 5:4

• 5:9

• 4:9

• 4:5

The picture above represents a ratio from the number os red hearts to the number of blue diamonds. This is equal to:

• 6 : 10

• 10 : 6

• 10 : 16

• 16 : 6

what is the ratio of seals to turtles?

• 5 : 3

• 3 to 5

• 3 of 5

• 3 : 8