6th Test Reviews-Ratios and Proportions

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What is a ratio?

Back

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

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How do you calculate a ratio?

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To calculate a ratio, divide the quantity of one item by the quantity of another item.

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What is a proportion?

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A proportion is an equation that states that two ratios are equal.

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How do you convert a fraction to a percent?

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To convert a fraction to a percent, divide the numerator by the denominator and then multiply by 100.

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What is the formula to find the percent of a number?

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The formula is: Percent = (Part/Whole) x 100.

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If there are 4 apples, 2 bananas, and 5 pears, what is the ratio of apples to bananas?

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The ratio of apples to bananas is 4:2 or simplified to 2:1.

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What is 10% of 50?

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10% of 50 is 5.

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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 to find the total number of items.

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What does it mean if two ratios are equivalent?

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It means that they represent the same relationship between quantities.

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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 by their greatest common divisor.

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