$\"\"$

The expression is $\"\"$ .

$\"\"$ (Write mixed numbers as improper fractions) \ \

$\"\"$ (Multiply by reciprocal)

$\"\"$ (Use rule for multiplying fractions)

$\"\"$ (Divide out common factor)

$\"\"$ (Multiply: $\"\"$ ) $\"\"$

$\"\"$ (Write fractions using LCD) \ \

$\"\"$ (Write difference of numerators over denominator)

$\"\"$ (Subtract: $\"\"$ )

$\"\"$ (Write fraction as mixed number)

$\"\"$

The simplified expression is $\"\"$ .