Ratio and Rate

What mathematical operation do ratios involve?

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CCSS.6.NS.A.1

CCSS.6.NS.B.2

CCSS.6.RP.A.1

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When are ratios useful?

• When you want to compare two quantities.

• When you want to divide 2 numbers.

• When you're doing chores.

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CCSS.6.RP.A.1

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The following are different ways to write ratio, EXCEPT

• dash form

• word form

• colon form

• fraction form

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CCSS.6.RP.A.1

What is the ratio of sharks to fishes?

• 2 to 10

• 2 to 8

• 8 to 2

• 10 to 2

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CCSS.6.RP.A.1

CCSS.6.RP.A.3

What is ratio of blue to orange?

• 3/2

• 2/3

• 3/5

• 2/5

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CCSS.6.RP.A.1

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What is the ratio of circles to triangles?

• 2 to 4

• 1 to 3

• 3 to 4

• 1 to 2

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CCSS.6.RP.A.1

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Ten soccer players were going to a soccer tournament with their three coaches. What is the ratio of coaches to players? 

• 10 : 3

• 3 : 10

• 10:13

• 3:13

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CCSS.6.RP.A.1

CCSS.6.RP.A.3

Ella has 5 balloons. Taylor has 7 balloons. Write the ratio of Ella's balloons to Taylor's balloons.

• 7:5

• 5:7

• 3:5

• 5:3

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CCSS.6.RP.A.1

CCSS.6.RP.A.3

Express 3:12 in its simplest form

• 1:4

• 1:6

• 1:2

• 1:3

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CCSS.6.NS.B.4

CCSS.6.RP.A.1

CCSS.6.RP.A.3

In Lucy’s class, there are 12 boys and 18 girls. Write the ratio of girls to boys in its simplest form.

• 12:18

• 18:12

• 2:3

• 3:2

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CCSS.6.RP.A.1

CCSS.6.RP.A.3