If there are 4 suits in a deck of cards, there are only 4 aces inside a complete deck. That means the probability of drawing an ace is 4/52 and just simply simplify the answer to 1/13. The same as the case with nines
8/52, this is because there are 52 cards in a standard deck and 4 of each number on a card. So you have 4/52 of a nine or an ace. added together this is 8/52 chance to get a ace or a 9