Ratios & Equivalent Ratios

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What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

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How do you find an equivalent ratio?

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To find an equivalent ratio, you can multiply or 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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If a recipe calls for 2 cups of sugar and 3 cups of flour, what is the ratio of sugar to flour?

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The ratio of sugar to flour is 2:3.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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What is the ratio of chocolate chips to flour in a recipe that uses 3 cups of flour and 2 cups of chocolate chips?

Back

The ratio of chocolate chips to flour is 2:3.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If 30 kids like grape juice and the ratio of kids who like grape juice to those who like pineapple juice is 3:4, how many kids like pineapple juice?

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40 kids like pineapple juice.

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What is an equivalent ratio to 5:4?

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An equivalent ratio to 5:4 is 25:20.

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CCSS.6.RP.A.3A

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How can you express the ratio 4:5 in words?

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You can express the ratio 4:5 as '4 to 5'.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

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If a recipe requires 2 eggs for 1 batch of cookies, how many eggs are needed for 3 batches?

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6 eggs are needed for 3 batches.

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CCSS.6.RP.A.3B

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What does it mean if two ratios are equivalent?

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It means they represent the same relationship between quantities.

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CCSS.6.RP.A.3A

Front

If a class has 40 students and the ratio of boys to girls is 1:1, how many boys and girls are there?

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There are 20 boys and 20 girls.