Hope this helps but I think there is a 4/36, or a 1/9 (simplified form of 4/36) possibility of 2 dice having a sum of 5.Because there are 36 possible outcomes when you roll two dice. And there are only 4 possible ways to get a sum of 5 when rolling two dice.Those 4 possible ways are (1,4),(4,1),(2,3),and (3,2).