Ratios and Equivalent Ratios

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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

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What does it mean for two ratios to be equivalent?

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Two ratios are equivalent if they represent the same relationship between quantities, even if the numbers are different.

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CCSS.6.RP.A.3A

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How can you find an equivalent ratio using multiplication?

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

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CCSS.6.RP.A.3A

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How can you find an equivalent ratio using division?

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

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CCSS.6.RP.A.3A

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What is the ratio of 4 apples to 2 bananas?

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The ratio of 4 apples to 2 bananas is 4:2, which can be simplified to 2:1.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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If a recipe calls for 2 cups of flour and 3 cups of sugar, what is the ratio of flour to sugar?

Back

The ratio of flour to sugar is 2:3.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

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How do you express the ratio of pears to all fruit if there are 5 pears in a bowl of 4 apples, 2 bananas, and 5 pears?

Back

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

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the first step to complete a ratio table?

Back

Identify the relationship between the quantities and fill in the known values.

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If 15 pairs of socks cost $15, what is the cost per pair?

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The cost per pair is $1.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is the ratio of 10 to 45?

Back

The ratio of 10 to 45 can be simplified to 2:9.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2