Ratios and Equivalent Ratios

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What is a ratio?

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A ratio is a relationship between two numbers indicating how many times the first number contains the second.

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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., 1:2), as a fraction (e.g., 1/2), or with the word 'to' (e.g., 1 to 2).

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What is an equivalent ratio?

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Equivalent ratios are ratios that express the same relationship between numbers, even if the numbers themselves are different.

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How can you find equivalent ratios?

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You can find equivalent ratios by multiplying or dividing both terms of the ratio by the same non-zero number.

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What is the ratio of 15 to 30?

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The ratio of 15 to 30 is 1:2.

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How do you simplify a ratio?

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To simplify a ratio, divide both terms by their greatest common divisor (GCD).

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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?

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

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

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

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What is the first step to solving a problem involving ratios?

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The first step is to identify the quantities being compared and express them as a ratio.

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How can division be used to find equivalent ratios?

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Division can be used to simplify a ratio to its lowest terms, which gives an equivalent ratio.