Randomly draw one of the 10 number cards from 1 to 10, what is the probability that the number on the card is odd (fill in the score)
从1--10这10张数字卡片中任意摸出一张，卡片上是奇数的可能性是多少(填写分数)
<gadget id="calculator">5 / 10</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>