Ratios and Percents

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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

CCSS.6.RP.A.2

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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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CCSS.6.RP.A.1

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What is the ratio of girls to total students if there are 15 boys and 45 girls?

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The ratio of girls to total students is 45 to 60.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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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 two quantities, even if the numbers are different.

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CCSS.6.RP.A.3A

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If Maria has 2 scarves and 3 bows, what is the ratio of scarves to bows?

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The ratio of scarves to bows is 2 to 3.

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CCSS.6.RP.A.1

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What is the simplest form of the ratio 4:8?

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The simplest form of the ratio 4:8 is 1:2.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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How do you convert a ratio to a percent?

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To convert a ratio to a percent, divide the first number by the total of both numbers and multiply by 100.

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What is the percent equivalent of the ratio 3:4?

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The percent equivalent of the ratio 3:4 is 75%.

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If there are 10 blue stars and 40 red circles, what is the ratio of blue stars to red circles?

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The ratio of blue stars to red circles is 1 to 4.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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What does it mean to express a ratio in simplest form?

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Expressing a ratio in simplest form means reducing it to the smallest whole numbers that maintain the same relationship.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2