12/09 GM: Equivalent Ratios 6.RP.1.3a

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a:b'.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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How do you find an equivalent ratio using division?

Back

To find an equivalent ratio, divide both terms of the ratio by the same non-zero number.

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CCSS.6.RP.A.3A

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What is the equivalent ratio of 15:30?

Back

5:10 is an equivalent ratio of 15:30.

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CCSS.6.RP.A.3A

Front

What does it mean if two ratios are equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities.

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CCSS.6.RP.A.3A

Front

How can you express the ratio of hot dogs to cheeseburgers if there are 2 hot dogs for every 4 cheeseburgers?

Back

The ratio can be simplified to 1:2.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the ratio of the number of days it rained to the number of days it did NOT rain if it rained for 3 days and did not rain for 4 days?

Back

The ratio is 3:4.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If Briana shaded 3 out of 5 squares, what fraction represents the ratio of shaded to unshaded squares?

Back

The fraction is 3/5.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you calculate the total grams of protein in 12 ounces of tuna if 1 ounce contains 7 grams?

Back

Multiply 12 ounces by 7 grams per ounce to get 84 grams.

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CCSS.6.RP.A.3B

Front

What is the relationship between ratios and fractions?

Back

Ratios can be expressed as fractions, where the first quantity is the numerator and the second quantity is the denominator.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If a recipe calls for a ratio of 2:3 of sugar to flour, how much sugar is needed for 6 cups of flour?

Back

You need 4 cups of sugar (2/3 of 6 cups).