$\"\"$

The expression is $\"\"$

$\"\"$ (Substitute $\"\"$ )

Write the mixed numbers as an improper fraction.

$\"\"$

Rewrite the expression.

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

As denominators are same, write sum of numerators over denominator.

$\"\"$

$\"\"$ (Add the numerators)

$\"\"$ (Divide: $\"\"$ ) $\"\"$

The sum is $\"\"$ .