\"\"

\

The expression is \"\".

\

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

\

\"\"

\

Divide by the greatest common factors ofter multiplying.

\

Multiply the numerators and denominators.

\

\"\"

\

Take out common factors.

\

\"\"

\

\"\"

\

\"\"

\

\"\"

\

\"\"

\

The simplified expression is 18.