Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division, showing how many times one value contains or is contained within the other.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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How do you write a ratio?

Back

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

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What does a ratio of 3:6 mean?

Back

A ratio of 3:6 means that for every 3 parts of one quantity, there are 6 parts of another quantity.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How can you simplify a ratio?

Back

To simplify a ratio, divide both sides of the ratio by their greatest common divisor (GCD). For example, 4:8 simplifies to 1:2.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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What is the ratio of pears to apples if there are 6 pears and 3 apples?

Back

The ratio of pears to apples is 6:3, which simplifies to 2:1.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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If a bag contains 3 blue marbles, 2 red marbles, and 5 yellow marbles, what is the ratio of red to yellow?

Back

The ratio of red to yellow marbles is 2:5.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the ratio of monkeys to bananas if there are 4 monkeys and 5 bananas?

Back

The ratio of monkeys to bananas is 4:5.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If there are 4 hamburgers and 6 total food items, what is the ratio of hamburgers to total food?

Back

The ratio of hamburgers to total food is 4:6, which simplifies to 2:3.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the ratio of squares to circles if there are 3 squares and 6 circles?

Back

The ratio of squares to circles is 3:6, which simplifies to 1:2.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a part-to-part ratio?

Back

A part-to-part ratio compares different parts of a whole. For example, in a class of 10 boys and 5 girls, the part-to-part ratio of boys to girls is 10:5.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2