Ratios

What is a Ratio?

• Is a comparison of two quantities 
• A rate with a denominator of one
• It is when the only factor the numerator and denominator share is a one 
• Two decimals that can be multiplied

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Which represents the relationship of oranges to fruit?

• 2:6
• 2:4
• 4:6
• 4:2

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the ratio of red circles to blue stars?

• 3:4
• 7/4
• 11/4
• 4 to 7

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Which is NOT a way to represent a ratio?

• As a fraction
• Using the word "to"
• With a colon (:)
• None.  All of these are ways to write a ratio.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the ratio of triangles to squares?

• 2:6
• 5:6
• 3:4
• 4:3

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Is the following ratio part to part or part to whole?
5 out of 23 kids in a class play trumpet

• Part to part
• Part to whole

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the ratio of red dots to total dots

• 6:5

• 5 to 6

• 5:11

• 11:5

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CCSS.6.RP.A.2

CCSS.6.RP.A.1

Ms. Patten has 20 soccer balls and 12 cones. What is the ratio of cones to soccer balls?

• 20 to 12

• 20 to 32

• 13 to 32

• 12 to 20

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the ratio of red apples to green apples

• 7 apples to 3 green
• 4 red apples to 7 apples
• 4 red apples to 3 green apples
• 3 green apples to 4 red apples

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

You spend 2 hours watching t.v. then spend 8 hours sleeping. What is the ratio of t.v. to sleep?

• 2 : 8

• 8 : 2

• 8 to 2

• 8/2

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CCSS.6.RP.A.1

CCSS.6.RP.A.3