Ratios and Proportions

You have 3 dogs and 9 cats.
The ratio of cats to animals is an example of a _____________.

• Part to Part
• Part to Whole
• Whole to Whole
• Whole to Part

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Express the ratio as a fraction in simplest form:
18 ounces to 3 cups

• 6 to 1
• 1/6
• 18/3
• 6/1

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Express the ratio as a fraction in simplest form:
6 red cars to 4 blue cars

• 3 to 2
• 3/2
• 6/4
• 1.5

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If Justin can type 408 words in 4 minutes, how many words can he type per minute?

• 102 words per minute
• 100 words per minute
• 400 words per minute
• 412 words per minute

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2,550 gallons in 30 days
How many gallons per day?

• 100 gallons per day
• 100 days per gallon
• 85 gallons per day
• 85 days per gallon

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What is a Ratio?

• Is a comparison of two quantities 
• A rate with a denominator of one
• It is when the only factor the numerator and denominator share is a one 
• Two decimals that can be multiplied

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What is the ratio of red apples to green apples

• 7 apples to 3 green
• 4 red apples to 7 apples
• 4 red apples to 3 green apples
• 3 green apples to 4 red apples

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There are 2 chickens, 4 deer, 3 donkeys and 6 goats are at a petting zoo.  What is the ratio of goats to the total number of animals?

• 5/2
• 9/6
• 6/9
• 2/5

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Mr. Keys made $90 in 5 hours.  What is the unit rate?  

• $18 per hour
• $1 in 18 hours
• $90:5h
• 5 to 90

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Which is the better buy? a 12 pack of Coke for $3.50 or a six pack of Coke for $1.80?

• The 12 pack of Coke
• The 6 pack of Coke
• Neither
• They are the same

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