For the cards, There are 10 cards so there is a 5/10 probability that you will get an even cars. For the dice, there are only six sides so there is a 1/6 chance that you will roll a 3. You would then add the probabilities.Before you can add, you will find the greatest common denominator. This would be 30. What you do to the denominator you do to the numerator so the new fractions would be 5/30 and 15/30. Adding will give you 20 over 30 which can be simplified to 10/15. Then find the percent.
