Since there are 6 side on each die, and you are rolling two, there are 36 possibilities (6 faces*6 faces).
You can roll a sum of 5 with:
1, 4
2, 3
3, 2
4, 1
There are 4 ways.
That means 4 out of the 36 ways you can roll two dice (1/9 once rounded). That means there is a 1/9 chance of rolling a total of 5.
As for rolling a number greater than 3, you can roll 4, 5, or 6 on each die, which means there are 6 ways to roll two dice and get a number greater than 3 on at least one. This means that there is a 6/36 (1/6 once rounded) chance to do the same.
In conclusion, there is a 1/9 chance of getting a total of 5 and a 1/6 chance of rolling at least one number greater than 3 when rolling two dice.
