How many times is it possible to randomly draw a card from 52 playing cards (except king and king) that is exactly a multiple of 4?
从52张扑克牌(大王、小王除外)中随机抽取一张牌正好是4的倍数可能性是多少．
<gadget id="calculator">12 / 52</gadget>
<output>3/13 = around 0.230769</output>

<result>3/13 = around 0.230769</result>