$\"\"$

The expression is $\"\"$ .

Write the mixed numbers into improper fraction.

The improper fraction of $\"\"$ .

Substitute improper fraction values in the above expression.

$\"\"$ $\"\"$

Apply rule of different signs.

$\"\"$

Take absolute values.

$\"\"$

The LCM of 3, 5 and 4 is 60 and apply LCM rule: $\"\"$ .

$\"\"$

$\"\"$ . $\"\"$

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