Ratios

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What is a ratio?

Back

A ratio is a way to compare two quantities by using division. It shows how many times one value contains or is contained within the other.

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How do you write a ratio?

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A ratio can be written in three ways: using a colon (e.g., 3:4), as a fraction (e.g., 3/4), or with the word 'to' (e.g., 3 to 4).

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What does the ratio 3:10 mean?

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It means for every 3 parts of one quantity, there are 10 parts of another quantity.

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If there are 2 red cars and 3 blue cars, what is the ratio of red cars to blue cars?

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The ratio of red cars to blue cars is 2:3.

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What is the ratio of 5 apples to 10 oranges?

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The ratio is 1:2, because 5 apples and 10 oranges can be simplified.

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If there are 4 birds and 6 snakes, what is the ratio of birds to snakes?

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The ratio of birds to snakes is 4:6, which can be simplified to 2:3.

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

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Add the parts of the ratio together. For example, in the ratio 3:4, the total is 3 + 4 = 7.

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What is the ratio of 5 boys to 7 girls?

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The ratio of boys to girls is 5:7.

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If Kelly has 5 school apps and 3 game apps, what is the ratio of school apps to game apps?

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The ratio of school apps to game apps is 5:3.

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CCSS.6.RP.A.1

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What is the ratio of 3 green marbles to 4 blue marbles?

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The ratio is 3:4.

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