Respuesta :

Answer:

a / 3(a + b).

Step-by-step explanation:

3a / (9(a + b))

The 3/9 cancels to 1/3 so the answer is

a / 3(a + b)

Answer:

a/3(a+b)

Step-by-step explanation:

We can divide both the top and bottom of the expression by 3 to reduce the fraction. This gives us a/3(a+b), which is fully reduced.