There are five cards with 1, 2, 3, 4, and 5 written on them, and if one is drawn randomly, what is the probability of getting 1?
有五张分别写着1、2、3、4、5的卡片，任意抽一张，抽到1的可能性是多少．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>