Ratios, Unit Rate, Double Number Line Percents intro

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What is a ratio?

Back

A ratio is a comparison of two quantities by division, showing how many times one value contains or is contained within the other.

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How do you express a ratio as a fraction?

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To express a ratio as a fraction, write the first quantity as the numerator and the second quantity as the denominator.

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What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per'.

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If 5 apples cost $2, what is the unit rate per apple?

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The unit rate is $0.40 per apple.

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What is a double number line?

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A double number line is a visual representation that shows two related quantities along two parallel lines, helping to compare ratios and rates.

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How do you find the total number of items in a ratio?

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To find the total number of items in a ratio, add the parts of the ratio together.

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What is the simplest form of a ratio?

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The simplest form of a ratio is when the numbers are reduced to their smallest whole number values.

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Express the ratio 8:12 in simplest form.

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The simplest form of 8:12 is 2:3.

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What does it mean to compare quantities using a ratio?

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To compare quantities using a ratio means to show the relative size of one quantity to another.

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Front

If 9 avocados cost $5, how much do 18 avocados cost?

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$10.

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