Xianggong Central Primary School has a total of 246 students, of whom (1/3) participate in the chorus. The ratio of male to female students in the chorus is 20:21. How many boys are there in the school?
相公中心小学共有学生246人，其中(1/3)的人参加了合唱队，合唱队中男女生人数比是20：21，学校参加合唱队的男生有多少人？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">20 + 21</gadget>
<output>41</output>

<gadget id="calculator">20 / 41</gadget>
<output>20/41 = around 0.487805</output>

<gadget id="calculator">246 * (1/3) * (20/41)</gadget>
<output>40</output>

<result>40</result>