Hello there!
Firstly, let's figure out the total number of possible outcomes there are.
6 x 6 = 36
Therefore, the answer would be something out of 36.
The possible our comes that would make the sum of 5 would be:
1+4
2+3
3+2
4+1
So there are 4 possible outcomes that would make the sum of 5.
The answer would be 4/36.
However, you have to simplify the answer.
4/36 = 1/9
Thus, the final answer is 1/9
Hope this helped :D