1A 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 to b' or a:b.

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How do you express a ratio in simplest form?

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To express a ratio in simplest form, divide both terms of the ratio by their greatest common divisor (GCD).

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What is the ratio of dogs to all pets if there are 2 dogs, 4 cats, and 5 hamsters?

Back

The ratio of dogs to all pets is 2:11.

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What type of ratio is 4 apples to 3 oranges?

Back

This is a part-to-part ratio.

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What is the simplest form of the ratio of red LEGOs to yellow LEGOs if there are 3 red and 6 yellow?

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The simplest form is 1:2.

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What is the ratio of pears to all fruit if there are 4 apples, 2 bananas, and 5 pears?

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The ratio of pears to all fruit is 5:11.

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If the ratio of girls to boys is 3:1, what does this mean?

Back

For every boy, there are three girls.

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What is a part-to-whole ratio?

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A part-to-whole ratio compares a part of a group to the entire group.

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What is a part-to-part ratio?

Back

A part-to-part ratio compares one part of a group to another part of the same group.

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

Back

Add the parts of the ratio together to find the total number of items.

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