I have two fair dice, each numbered 1 to 6. I add the two numbers together. What is the probability that I get a total of 5

Each dice has six combinations which are independent. Therefore the number of possible outcomes will be 6*6 = 36. The probability of rolling a pair of dice whose numbers add to 5 is 4/36 = 1/9.

Step-by-step explanation:

For the odds of these two numbers coming up at the same time, you multiply the odds of one times the odds of the other. 5/6 * 1/6 = 5/36. So the odds that you'll roll 2 dice total six are 5/36 each time you roll (or approximately 1 chance in 7).