Intro to Ratios

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What is a ratio?

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A ratio is a relationship between two numbers indicating how many times the first number contains the second.

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How do you express a ratio?

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A ratio can be expressed in three ways: using a colon (e.g., 2:3), as a fraction (e.g., 2/3), or with the word 'to' (e.g., 2 to 3).

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What is the ratio of dogs to all pets if there are 2 dogs, 4 cats, and 5 hamsters?

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The ratio of dogs to all pets is 2:11.

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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 apples to bananas if there are 10 apples and 6 bananas?

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The ratio of apples to bananas is 10:6, which can be simplified to 5:3.

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CCSS.6.RP.A.1

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What is an equivalent ratio?

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An equivalent ratio is a ratio that expresses the same relationship between numbers, even if the numbers themselves are different.

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What is the equivalent ratio of 12:20?

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The equivalent ratio of 12:20 is 3:5.

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If there are 5 boys and 7 girls, what is the ratio of girls to boys?

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The ratio of girls to boys is 7:5.

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CCSS.6.RP.A.1

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How do you find the total number of items in a ratio problem?

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To find the total number of items, add the parts of the ratio together.

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What is the ratio of smiley faces to hearts if there are 4 smiley faces and 6 hearts?

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The ratio of smiley faces to hearts is 4:6, which can be simplified to 2:3.

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CCSS.6.RP.A.1

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