$\"\"$

The expression is $\"\"$ .

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

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

To add fractions the denominators must be equal.

Find the least common denominator (LCD).

Find the Least Common Multiple of 2 and 4.

Multiples of 2: 2,4,6,8,10,12............

Multiples of 4: 4,8,12,16,20,...........

The least common multiple of 2 and 4 is 4.

Rewrite each fraction with a common denominator of 4.

$\"\"$

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

Rewrite fractions using the LCD 6.

$\"\"$

Denominators are same, write sum of numerators over denominator.

$\"\"$ (LCM is 4)

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

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