What is the probability of drawing a king from a deck of 54 cards?
从一副54张的扑克牌中抽出一张K的可能性大小是多少．
<gadget id="calculator">4 / 54</gadget>
<output>2/27 = around 0.074074</output>

<result>2/27 = around 0.074074</result>