$\"\"$

\

\

The expression is $\"\"$ .

\

$\"\"$ (Distributive property: a(b + c) = ab + ac)

\

$\"\"$ (Cancel common terms)

\

$\"\"$ (Multiply: $\"\"$ )

\

$\"\"$ (Distributive property: $\"\"$ )

\

$\"\"$ (Cancel common terms)

\

$\"\"$ (Product of two same signs is positive)

\

$\"\"$

\

$\"\"$ (Commutative property: a + b = b + a)

\

$\"\"$ (Add: 2b + b = 3b)

\

To add fractions the denominators must be equal.

\

Find the least common denominator (LCD).

\

Multiples of 1: 1,2,3,4,5,6,7.............

\

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

\

The least common multiple of 1 and 2 is 2.

\

Rewrite each fraction with a common denominator of 2.

\

$\"\"$

\

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

\

Rewrite fractions using the LCD 2.

\

$\"\"$

\

$\"\"$ (Lcm is 2)

\

$\"\"$ (Subtract: $\"\"$ ) $\"\"$

\

The simplified expression of $\"\"$ $\"\"$ .