Ratio Concepts

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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

CCSS.6.RP.A.2

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How do you write a ratio of boys to girls if there are 5 boys and 7 girls?

Back

The ratio of boys to girls is 5 to 7.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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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

The ratio of red apples to green apples is 4 to 3.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If there are 4 birds and 6 snakes, what is the ratio of birds to total animals?

Back

The ratio of birds to total animals is 4 to 10.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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What is the ratio of red tiles to white tiles if there are 13 red tiles and 12 white tiles?

Back

The ratio of red tiles to white tiles is 13 to 12.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How do you simplify the ratio 8:12?

Back

To simplify the ratio 8:12, divide both numbers by their greatest common divisor, which is 4. The simplified ratio is 2:3.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What does it mean if a ratio is expressed as 1:4?

Back

It means for every 1 part of the first quantity, there are 4 parts of the second quantity.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

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

Back

The ratio of flour to sugar is 2 to 3.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the ratio of 15 to 5?

Back

The ratio of 15 to 5 is 3 to 1 when simplified.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If there are 10 apples and 5 oranges, what is the ratio of oranges to apples?

Back

The ratio of oranges to apples is 5 to 10, which simplifies to 1 to 2.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2