$\"\"$

The expression is $\"\"$ .

To subtract $\"\"$ means add $\"\"$

$\"\"$

To add fractions the denominators must be equal.

Find the least common denominator (LCD).

Multiples of 7: $\"\"$

Multiples of 14: $\"\"$

The least common multiple of 7 and 14 is 14.

Rewrite each fraction with a common denominator of 14.

$\"\"$

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

Rewrite the equivalent fractions using the LCD.

$\"\"$ = $\"\"$

$\"\"$ (Simplify)

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

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