6th Ratios/Rates Flashcard

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

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How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

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What does it mean for two ratios to be equivalent?

Back

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 determine if two ratios are equivalent?

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You can determine if two ratios are equivalent by cross-multiplying and checking if the products are equal.

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CCSS.6.RP.A.3A

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What is the ratio of 3 to 5 expressed as a fraction?

Back

The ratio of 3 to 5 can be expressed as the fraction 3/5.

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CCSS.6.RP.A.1

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Front

If a recipe calls for a ratio of 2:3 of sugar to flour, how much sugar is needed for 6 cups of flour?

Back

If the ratio is 2:3, then for 6 cups of flour, you need 4 cups of sugar (2/3 of 6).

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What is a rate?

Back

A rate is a specific kind of ratio that compares two quantities with different units, such as miles per hour.

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CCSS.6.RP.A.1

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Front

How do you calculate a unit rate?

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To calculate a unit rate, divide the quantity by the number of units to find the amount per one unit.

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CCSS.6.RP.A.1

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What is the unit rate of 408 words in 4 minutes?

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The unit rate is 102 words per minute (408 words ÷ 4 minutes).

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CCSS.6.RP.A.1

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Front

What is an example of an incorrect way to write a ratio?

Back

An incorrect way to write a ratio is 'X and Y'.

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CCSS.6.RP.A.1

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