what is the probability of getting a heart out of a 52 card deck?

There are the same number of hearts, spades, clubs, and diamonds.

If you draw a card, you have 13 out of 52 cards that could be a heart.

That would reduce to 1 out of 4 probability of getting a heart.

there are 4 types of cards (spades clubs diamonds and hearts) that means there is a 1:4 probability of getting a heart or 25%