Ratios and Ratio Tables

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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 fraction.

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How do you simplify a ratio?

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

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What is the ratio of red LEGOS to yellow LEGOS if there are 3 red and 6 yellow?

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1/2

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CCSS.6.RP.A.1

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If a table shows A=45 and B=10, what is the ratio of A to B?

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4.5 to 1 or 9 to 2 when simplified.

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What is the ratio of school apps to game apps if there are 5 school apps and 3 game apps?

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5 to 3

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How do you express a ratio in simplest form?

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By dividing both parts of the ratio by the same number until no further simplification is possible.

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CCSS.6.RP.A.2

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What is the ratio of blue LEGOS to total LEGOS if there are 8 blue, 6 yellow, and 3 red?

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8 to 17.

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If there are 10 apples and 4 are green, what is the ratio of green apples to total apples?

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4 to 10 or 2 to 5 when simplified.

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CCSS.6.RP.A.1

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What does a ratio table represent?

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A ratio table shows pairs of numbers that have the same ratio, helping to visualize relationships between quantities.

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If the ratio of cats to dogs is 3 to 2, how many dogs are there if there are 9 cats?

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6 dogs.