If you toss a single die, what is the probability that the number facing up is 1, 2, or 3 or the number facing up is an even number

If i toss a die, first there are six sides on the die,

so the probability of it facing up to 1 is 1/6

facing up to 2 is 2/6 = 1/3

facing up to 3 is 3/6 = 1/2

am even number = the even numbers are 2,4,6 so the probability of getting an even number is 3/6 = 1/2