Ratios and Equivalent Ratios

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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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What is an equivalent ratio?

Back

Equivalent ratios are two or more ratios that represent the same relationship between quantities, such as 1:2 and 2:4.

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How do you find equivalent ratios using multiplication?

Back

To find equivalent ratios using multiplication, multiply both terms of the ratio by the same non-zero number.

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How do you find equivalent ratios using division?

Back

To find equivalent ratios using division, divide both terms of the ratio by the same non-zero number.

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What is the ratio of red toy cars to all toy cars if there are 2 black, 3 red, and 5 white toy cars?

Back

The ratio of red toy cars to all toy cars is 3:10.

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

Back

The ratio of flour to sugar is 4:2, which simplifies to 2:1.

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Are the ratios 4:5 and 8:10 equivalent?

Back

Yes, the ratios 4:5 and 8:10 are equivalent because both can be simplified to 4:5.

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What is the ratio of 10 to 45?

Back

The ratio of 10 to 45 can be simplified to 2:9.

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If you have 12 apples and 4 oranges, what is the ratio of apples to oranges?

Back

The ratio of apples to oranges is 12:4, which simplifies to 3:1.

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What is the first step to complete a ratio table?

Back

The first step to complete a ratio table is to identify the relationship between the quantities.