A fair number cube with the numbers 1, 2, 3,4,5, and 6 is rolled what is the probability of getting an even number

There are 3 even numbers out of the 6 they give you. They are 2, 4 and 6. So it can be represented in a fraction form: 3/6 and simplified to 1/2. It can be written as a percentage - 50%.

50% of all numbers given are even and so there is a 50% chance to get one of them - probability.