Ratios! (Part/Part to Part/Whole)

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What is a ratio?

Back

A ratio is a way to compare two or more quantities. It shows how much of one thing there is compared to another.

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CCSS.6.RP.A.1

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How do you write a ratio?

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A ratio can be written using a colon, like 2:3, or as a fraction, like 2/3.

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What does part/part ratio mean?

Back

A part/part ratio compares one part of a group to another part of the same group.

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What does part/whole ratio mean?

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A part/whole ratio compares one part of a group to the total amount of the group.

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If there are 2 red cars and 3 blue cars, what is the ratio of red to blue cars?

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The ratio of red to blue cars is 2:3.

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CCSS.6.RP.A.1

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If there are 4 apples, 2 bananas, and 5 pears, what is the total number of fruits?

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The total number of fruits is 4 + 2 + 5 = 11.

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What is the ratio of pears to all fruits if there are 5 pears?

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The ratio of pears to all fruits is 5:11.

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CCSS.6.RP.A.1

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If Ella has 5 balloons and Taylor has 7 balloons, what is the ratio of Ella's balloons to Taylor's balloons?

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The ratio of Ella's balloons to Taylor's balloons is 5:7.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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If there are 2 oranges and 6 total fruits, what is the ratio of oranges to total fruits?

Back

The ratio of oranges to total fruits is 2:6.

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CCSS.6.RP.A.1

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If there are 5 dogs and 14 total animals, what is the ratio of dogs to total animals?

Back

The ratio of dogs to total animals is 5:14.

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CCSS.6.RP.A.1

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