$\"\"$

The expression is $\"\"$ .

$\"\"$ (Quotient property of square roots: $\"\"$ )

$\"\"$ (L.C.M of $\"\"$ is $\"\"$ )

$\"\"$ (Product property of square roots: $\"\"$ )

$\"\"$ (Cancel square and root: $\"\"$ )

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

$\"\"$ (Multiply numarator and denominator by $\"\"$ )

$\"\"$ (Product property of square roots: $\"\"$ )

$\"\"$ .

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

$\"\"$ .