Ratios and Unit Rate

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What is a ratio?

Back

A ratio is a mathematical way to compare two or more quantities, showing the relative size of one quantity to another.

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How do you calculate the unit rate?

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To calculate the unit rate, divide the total quantity by the total number of units. For example, if you have 36 cookies for $4, the unit rate is 36 cookies ÷ 4 dollars = 9 cookies per dollar.

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What is the unit rate of 44 stamps on 4 sheets?

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11 stamps per sheet.

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If a store sees 120 customers in 8 hours, what is the unit rate in customers per hour?

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15 customers per hour.

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True or False: A ratio can only compare two quantities.

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False. A ratio can compare two or more quantities.

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CCSS.6.RP.A.3A

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What is the ratio of red circles to blue stars if there are 3 red circles and 4 blue stars?

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3:4 or 3 to 4.

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CCSS.6.RP.A.1

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What does it mean if a unit rate is expressed as 'cookies per dollar'?

Back

It means the number of cookies you can buy for each dollar spent.

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If you have a ratio of 7 to 4, how can you express it as a fraction?

Back

7/4.

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What is the unit rate of 60 miles driven in 3 hours?

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20 miles per hour.

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How do you express a ratio of 5 apples to 10 oranges?

Back

It can be expressed as 5:10 or simplified to 1:2.

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