Applications of Rational Numbers Review

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What is a rational number?

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A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

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How do you find the cost of one item when given the total cost for multiple items?

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Divide the total cost by the number of items.

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What is the cost of one rose if a dozen roses cost $29.88?

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$2.49.

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What is the sum of -4.2 and 3.3?

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-0.9.

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What is the product of two positive numbers?

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The product of two positive numbers equals a positive number.

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What is the formula for adding rational numbers?

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To add rational numbers, find a common denominator, convert the fractions, and then add the numerators.

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What is the formula for subtracting rational numbers?

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To subtract rational numbers, find a common denominator, convert the fractions, and then subtract the numerators.

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