$\"\"$

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The expression is $\"\"$ .

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$\"\"$ ( $\"\"$ can be written as $\"\"$ ) $\"\"$

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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 same signs is positive) $\"\"$

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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 $\"\"$ .