On Halloween, Latecia approaches a door in her princess costume, a smile on her face. The adult who is handing out treats has four kinds of candy: 9 bags of licorice, 5 boxes of tamarind balls, 3 packets of peanut butter cups, and 21 jawbreakers. Because her braces, Latecia cannot eat licorice or tamarind balls. What is the probability she will get a candy she can eat? (Assume she only gets one treat randomly selected.)

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