Simplifying Ratios

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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 in the form 'a:b'.

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How do you simplify a ratio?

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To simplify a ratio, divide both terms by their greatest common divisor (GCD).

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What is the ratio of 15 girls to 6 boys in simplest form?

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5:2

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What is the simplified form of the ratio 18:50?

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9:25

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If there are 28 cats and 70 dogs, what is the ratio of cats to dogs?

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2:5

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How do you express the ratio 20:45 in simplest form?

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4:9

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What is the simplified form of the ratio 12 to 16?

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3:4

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What does it mean to express a ratio as a fraction?

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Expressing a ratio as a fraction means writing it in the form of a fraction, such as a/b, where 'a' and 'b' are the two quantities being compared.

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CCSS.6.RP.A.1

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What is the ratio of 10 apples to 5 oranges?

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2:1

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How can you check if a ratio is in simplest form?

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A ratio is in simplest form if the two numbers have no common factors other than 1.

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