A deck of poker has 54 cards and four suits. Excluding the king and the king, what is the probability of drawing a "heart" (fill in the score)
一副扑克54张，四种花色，除去大王和小王，从中抽取一张，抽出"红桃"的可能性是多少(填写分数)
<gadget id="calculator">54 - 2</gadget>
<output>52</output>

<gadget id="calculator">13 / 52</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>