Ratio Language/Equivalent Ratios

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 to b' or a:b.

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How do you write equivalent ratios?

Back

Equivalent ratios are ratios that express the same relationship between two quantities. For example, 2:3 and 4:6 are equivalent ratios.

Front

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

Back

The ratio of sugar to flour is 2:3.

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What is the formula to find an equivalent ratio?

Back

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

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How do you scale a recipe using ratios?

Back

To scale a recipe, multiply the ingredients by the same factor to maintain the ratio. For example, if you double a recipe that uses 2 eggs and 3 cups of flour, you would use 4 eggs and 6 cups of flour.

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What is the ratio of chocolate chips to flour in a recipe that uses 3 cups of flour and 2 cups of chocolate chips?

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The ratio of chocolate chips to flour is 2:3.

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If 5 movie tickets cost $45, what is the cost of 1 ticket?

Back

The cost of 1 ticket is $9.

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If a recipe requires 2 eggs for every 3 cups of flour, how many eggs are needed for 9 cups of flour?

Back

6 eggs are needed for 9 cups of flour.

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What is the relationship between the number of moons and suns if the ratio is 4:8?

Back

The relationship is that for every 4 moons, there are 8 suns, which simplifies to 1 moon for every 2 suns.

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How do you find the total cost of multiple items using ratios?

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To find the total cost, multiply the cost of one item by the number of items. For example, if one ticket costs $9, then 4 tickets cost $36.