India v/s Pak Once again

In a series of five one day cricket matches between India and Pakistan ,the probability of India winning or drawing are respectively $\dfrac{1}{3}$ and $\dfrac{1}{6}$ .If a win,loss or draw gives 2,0 or 1 point respectively that India will score 5 points in the series.

If the above probability could be represented as $\dfrac{A}{B}$ , where $A$ and $B$ are coprime positivei ntegers, find $A+B$ .