Ratios and Equivalent Ratios

Front

What is a ratio?

Back

A ratio is a comparison of two quantities, 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

Front

How do you write a ratio using a colon?

Back

A ratio can be written using a colon by placing the two quantities separated by a colon, for example, 3:5.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What does it mean for two ratios to be equivalent?

Back

Two ratios are equivalent if they represent the same relationship between quantities, meaning they can be simplified to the same fraction.

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CCSS.6.RP.A.3A

Front

Which of the following is NOT equivalent to 3:5? 15:25, 9:15, 21:28, 30:50

Back

21:28 is NOT equivalent to 3:5.

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CCSS.6.RP.A.3A

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If you spend 2 hours watching TV and 8 hours sleeping, what is the ratio of TV to sleep?

Back

The ratio of TV to sleep is 2:8.

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CCSS.6.RP.A.1

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Front

What are three ways to write a ratio?

Back

You can write a ratio using 'to', using a colon, and as a fraction.

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CCSS.6.RP.A.1

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Front

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

Back

The ratio of pears to apples is 5:4.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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What is the equivalent ratio for 4:12? 20:_____

Back

The equivalent ratio is 20:60.

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CCSS.6.RP.A.3A

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How can you simplify the ratio 8:12?

Back

You can simplify the ratio 8:12 to 2:3 by dividing both numbers by their greatest common divisor, which is 4.

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CCSS.6.RP.A.1

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Front

What is the first step to find an equivalent ratio?

Back

To find an equivalent ratio, multiply or divide both terms of the ratio by the same non-zero number.

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CCSS.6.RP.A.3A