Intro to Ratios

A ratio

• compares one thing to another

• is added to another ratio

• is the same thing as GCF

• is where you list all the factors.

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CCSS.6.RP.A.1

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A ratio can be written as all the ways below EXCEPT which one?

• 3 = 4

• 3:4

• 3/4

• 3 to 4

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Does the ORDER that you list the numbers in a RATIO matter??

• YES, IT DOES

• NO, IT DOES NOT

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What is the ratio of triangles to squares?

• 2:6

• 4:6

• 3:4

• 4:3

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What is the ratio of red apples to green apples

• 7 apples for every 3 green

• 4 red apples for every 7 apples

• 4 red apples for every 3 green apples

• 3 green apples for every 4 red apples

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CCSS.6.RP.A.1

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What is the ratio of red circles to blue stars?

• 3:4
• 7/4
• 11/4
• 4 to 7

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James had 4 peaches, 5 apples, and 2 plums. What is the ratio of apples to plums?

• 5 to 2

• 2:5

• 4/5

• part to whole

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CCSS.6.RP.A.1

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A bag of marbles comes with 3 blue marbles, 2 red marbles, and 5 yellow marbles. What is the ratio of red to yellow?

• 2 to 5

• 5 to 3

• 3 to 5

• 5 to 2

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CCSS.6.RP.A.1

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Patrick has 2 black, 3 red, and 5 white toy cars. What is the ratio of red toy cars to all the toy cars?

• 3:5

• 1:3

• 3:11

• 3:10

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CCSS.6.RP.A.1

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There are 4 birds and 6 snakes. What is the ratio of birds to total animals in simplest form?

• 2/5

• 4/6

• 4/10

• 10/4

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CCSS.6.RP.A.1

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