Ratios: Introduction

Front

What is a ratio?

Back

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

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How do you write a ratio?

Back

Ratios can be written 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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CCSS.6.RP.A.1

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Front

What does the ratio 2:6 represent?

Back

The ratio 2:6 means for every 2 of one quantity, there are 6 of another quantity.

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Front

If there are 4 apples and 2 bananas, what is the ratio of apples to bananas?

Back

The ratio of apples to bananas is 4:2, which simplifies to 2:1.

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CCSS.6.RP.A.1

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What is the ratio of arms to fingers on a human?

Back

The ratio of arms to fingers is 2:10.

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CCSS.6.RP.A.1

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In a fruit bowl with 4 apples, 2 bananas, and 5 pears, what is the ratio of pears to all fruit?

Back

The ratio of pears to all fruit is 5:11.

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CCSS.6.RP.A.1

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Front

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

Back

The ratio of girls to boys is 7:5.

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

Back

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

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How do you find the total parts in a ratio?

Back

To find the total parts in a ratio, add the numbers in the ratio together.

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CCSS.6.RP.A.1

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Front

What is a part-to-part ratio?

Back

A part-to-part ratio compares different parts of a whole, such as the ratio of boys to girls.

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CCSS.6.RP.A.1

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