Answer:
1/13 or 7.69%
Step-by-step explanation:
Note that there are 2 suits that are black (clubs and spades). You are also trying to draw a black four or a black five, meaning that it gives you only:
1) Four of clubs
2) Four of spades
3) Five of clubs
4) Five of spades
Your probability of drawing is part/whole, or 4/52
Simplify:
(4/52)/(4/4) = 1/13
Your probability is 1/13, or a 7.69% chance of selecting the targeted card.