Ratios, Rates, & Unit Rate

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What is a ratio?

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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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How do you simplify a ratio?

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

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What is a rate?

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

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What is a unit rate?

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A unit rate is a rate in which the second quantity is one unit, such as 60 miles per hour (60 miles for 1 hour).

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If a car travels 300 miles in 5 hours, what is the unit rate?

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60 miles per hour.

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How do you find the price per item?

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To find the price per item, divide the total cost by the number of items.

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If 12 apples cost $3, what is the price per apple?

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$0.25 per apple.

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What is the formula for calculating a unit rate?

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Unit Rate = Total Quantity / Number of Units.

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If a recipe calls for 4 cups of flour for 2 cakes, what is the ratio of flour to cakes?

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The ratio is 2 cups of flour per cake.

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How do you convert a ratio into a fraction?

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To convert a ratio into a fraction, write the first term as the numerator and the second term as the denominator.

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