Ratio and Proportion Review

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a:b'.

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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

How do you find an equivalent ratio?

Back

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

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CCSS.6.RP.A.3A

Front

What is the ratio of guards to forwards if there are 8 guards and 5 forwards?

Back

The ratio of guards to forwards is 8:5.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

If the ratio of Shanni's ribbon to Mel's ribbon is 8:1, how much longer is Shanni's ribbon compared to Mel's?

Back

Shanni's ribbon is 8 times longer than Mel's ribbon.

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CCSS.6.RP.A.3A

Front

What is the ratio of bunnies to puppies if there are 11 bunnies and 3 puppies?

Back

The ratio of bunnies to puppies is 11:3.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

How can you express the ratio of 30 kids who like grape juice to 40 kids who like pineapple juice?

Back

The ratio can be expressed as 30:40, which simplifies to 3:4.

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CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal.

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CCSS.7.RP.A.2A

Front

How do you solve a proportion?

Back

To solve a proportion, you can cross-multiply and then solve for the unknown variable.

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CCSS.7.RP.A.2C

Front

If a recipe calls for a ratio of 2 cups of flour to 3 cups of sugar, how much sugar is needed for 4 cups of flour?

Back

For 4 cups of flour, you would need 6 cups of sugar, maintaining the ratio of 2:3.