Rational Numbers Operations Flashcard

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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 add two rational numbers with different denominators?

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To add two rational numbers with different denominators, find a common denominator, convert each fraction, and then add the numerators.

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What is the process to subtract rational numbers?

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

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How do you multiply two rational numbers?

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To multiply two rational numbers, multiply the numerators together and the denominators together.

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What is the rule for dividing rational numbers?

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To divide by a rational number, multiply by its reciprocal (invert the second fraction and multiply).

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There are 30 gallons of water in the tank.

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What is 15% of $60?

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15% of $60 is $9, so the sale price is $51.

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