6th Grade Ratios/Ratio Descriptions

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What is a ratio?

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

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CCSS.6.RP.A.1

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What does 'part to part' ratio mean?

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A 'part to part' ratio compares different parts of a whole to each other.

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What does 'part to whole' ratio mean?

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A 'part to whole' ratio compares a part of a quantity to the entire quantity.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common factor.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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What is the ratio of 2 apples to 3 oranges?

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The ratio is 2:3.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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If there are 4 red marbles and 6 blue marbles, what is the ratio of red to blue marbles?

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The ratio is 4:6, which simplifies to 2:3.

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CCSS.6.RP.A.1

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What is the ratio of 5 cats to 10 dogs?

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The ratio is 5:10, which simplifies to 1:2.

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CCSS.6.RP.A.1

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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 is 2:3.

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CCSS.6.RP.A.1

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What is the ratio of 8 boys to 12 girls?

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The ratio is 8:12, which simplifies to 2:3.

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CCSS.6.RP.A.1

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How do you express a ratio in words?

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You can express a ratio in words by saying 'for every' or 'for each'.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2