Final answer:
To simplify the given expression, divide the numerator and denominator by 3. The simplified form is (x+3)/(x+6).
Step-by-step explanation:
To simplify the given expression, we need to first simplify the individual fractions in the numerator and denominator.
For the numerator, x+3/3, we can simplify by dividing both the numerator and denominator by 3, giving us (x+3)/1.
For the denominator, x+6/3, we can also simplify by dividing both the numerator and denominator by 3, giving us (x+6)/1.
Combining the simplified numerator and denominator, we get (x+3)/(x+6) as the simplified form of the expression.