Add and Subtract Rational Numbers (Fractions)

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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 fractions with different denominators?

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

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What is the first step in subtracting fractions?

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The first step in subtracting fractions is to find a common denominator.

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What does it mean to simplify a fraction?

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Simplifying a fraction means reducing it to its lowest terms, where the numerator and denominator have no common factors other than 1.

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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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