A number cube with the numbers 1 through 6 is rolled. What is the probability of the number cube showing either a 1 or an even number

Answer: 4/6 or 2/3

Step-by-step explanation:

Half of the dice has even numbers and the other has odds so because of that it already gives you a 3/6 or 1/2 chance of getting an even. And the one for getting would be a 1/6. But because we already have the evens for 3/6 we can then add the 1/6 to get 4/6 or 2/3