Final answer:
The probability of getting a sum of 1/3 when rolling 2 dice is 0, as it is not possible.
Step-by-step explanation:
To find the probability of getting a sum of 1/3 when rolling 2 dice, we first need to determine the number of possible events and the number of favorable events. The sum of the numbers on 2 dice can range from 2 (1+1) to 12 (6+6). To get a sum of 1/3, we need the sum of both dice to add up to 1/3, which is not possible.
Therefore, the probability of getting a sum of 1/3 is 0. There are no possible events where the sum of the numbers on 2 dice is 1/3.