Ratios and Rates

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What is a ratio?

Back

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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How do you simplify a ratio?

Back

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

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What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'x per 1 unit'.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the ratio of boys to girls in a class with 15 boys and 20 girls?

Back

3:4

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CCSS.6.RP.A.1

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If there are 4 triangles and 12 squares, what is the ratio of triangles to squares?

Back

1:3

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you find the price per item?

Back

To find the price per item, divide the total cost by the number of items.

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CCSS.6.RP.A.1

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What is the unit rate of players to teams if there are 156 players on 12 teams?

Back

13 players per team.

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CCSS.6.RP.A.1

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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

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If a recipe calls for 2 cups of flour and 3 cups of sugar, what is the ratio of flour to sugar?

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2:3

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CCSS.6.RP.A.1

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What is the ratio of red apples to green apples if there are 4 red apples and 3 green apples?

Back

4 red apples to 3 green apples.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2