$\"\"$

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The expression is $\"\"$ .

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The LCD of the numerator: 1, 2 is 2.

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$\"\"$

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The LCD of the denominator: 1, 8 is 8.

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$\"\"$ $\"\"$

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Multiply by $\"\"$ , the reciprocal of the divisor $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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The simplified expression of $\"\"$ is $\"\"$ .