## Prealgebra (7th Edition)

$\frac{1}{2}$
There are 13 cards of each suit in the deck. 2 of the suits are black, so there are 26 black cards and the probability of a heart is 26 of 52. $\frac{26}{52}=\frac{26\div26}{52\div26}=\frac{1}{2}$