Multiplying and Dividing Rational Numbers

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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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What is the rule for multiplying two rational numbers with the same sign?

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When multiplying two rational numbers with the same sign, the product is positive.

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What is the rule for multiplying two rational numbers with different signs?

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When multiplying two rational numbers with different signs, the product is negative.

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What is the rule for dividing two rational numbers with the same sign?

Back

When dividing two rational numbers with the same sign, the quotient is positive.

Front

What is the rule for dividing two rational numbers with different signs?

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When dividing two rational numbers with different signs, the quotient is negative.

Front

How do you convert a mixed number to an improper fraction?

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Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

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What is the first step in dividing fractions?

Back

To divide fractions, multiply by the reciprocal of the divisor.

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