What is the probability of drawing a 3 randomly from a deck of playing cards (excluding the big and small kings)?
从一副扑克牌(除去大、小王)中任意抽出一张3抽出它的可能性是多少．
<gadget id="calculator">54 - 2</gadget>
<output>52</output>

<gadget id="calculator">4 / 52</gadget>
<output>1/13 = around 0.076923</output>

<result>1/13 = around 0.076923</result>