Rates, Ratios and Unit Rates

Front

What is a Ratio?

Back

A ratio is a comparison of two quantities.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is an Equivalent Ratio?

Back

An equivalent ratio expresses the same relationship between two quantities, even if the numbers are different.

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CCSS.6.RP.A.3A

Front

What is a Unit Rate?

Back

A unit rate is a rate in which the second quantity is one unit.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

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

Back

6 to 1

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the unit rate if Brian reads 30 words in 1 minute?

Back

30 words per minute.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

Solve the proportion: 4/8 = x/10. What is x?

Back

x = 5.

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CCSS.7.RP.A.2B

Front

What is the difference between a rate and a ratio?

Back

A rate compares two quantities with different units, while a ratio compares two quantities with the same unit.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If a car travels 150 miles in 3 hours, what is the unit rate in miles per hour?

Back

50 miles per hour.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the formula for finding a unit rate?

Back

Unit Rate = Total Quantity / Number of Units.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2