There are 3 identical drawers in a cabinet, each of which contains 3 Chinese books, 4 math books, and 2 English books. Xiao Ming opens the cabinet and opens a drawer arbitrarily. What is the probability that he will take the math book?
一个柜子里有3个完全相同的抽屉，抽屉里分别装有3本语文书、4本数学书、2本英语书．小明打开柜子，任意拉开一个抽屉，他拿数学书的可能性是多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>