$\"\"$

The expression is $\"\"$ .

Find the Least Common Denominator (LCD) of improper fraction $\"\"$ and $\"\"$ .

$\"\"$ Write it as $\"\"$

Find the Least Common Multiplier of 9 and 2.

Multiples of 9: $\"\"$

Multiples of 2: $\"\"$

The least common multiple of 9and 2 is 18, the LCD is 18.

Rewrite each fraction using the least common denominator (LCD) is 18.

$\"\"$ and $\"\"$ $\"\"$

Rewrite the sum using the LCD.

$\"\"$

= $\"\"$ (Add: $\"\"$ ) \ \ $\"\"$

The difference of the expression is $\"\"$ .