\"\"

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The expression is \"\".

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Mixed fractions can be written as improper fractions.

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\"\"                (\"\")

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\"\"                (\"\")\"\"

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Divide by a fraction, multiply by its multiplicative inverse.

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So, \"\", where \"\".

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\"\"

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\"\"             (Product of two different signs is negative)\"\"

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If \"\", where b,d \"\".

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\"\"

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\"\"                       (Multiply numerator: \"\")

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\"\"                         (Multiply denominator: \"\")\"\"

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The simplest form is \"\".