Simplify this expression. \[ \frac{6 a}{8(a+b)} \] Enter the correct answer.

Step 1 ：The expression given is \(\frac{6 a}{8(a+b)}\).

Step 2 ：We can simplify this expression by factoring out the common factor of 2 from the numerator and the denominator.

Step 3 ：This leaves us with \(\frac{3a}{4(a+b)}\).

Step 4 ：Final Answer: The simplified expression is \(\boxed{\frac{3a}{4(a+b)}}\).