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?

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When dividing two rational numbers, the signs determine the result: if both numbers have the same sign, the quotient is positive; if they have different signs, the quotient is negative.

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How do you simplify a fraction?

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To simplify a fraction, divide the numerator and the denominator by their greatest common divisor (GCD).

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