There are 40 students swimming in the swimming pool, among them (3/5) are male students. How many male students are there?
游泳池里有40名学生在游泳，其中(3/5)是男同学．男同学有多少人？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">40 * (3/5)</gadget>
<output>24</output>

<result>24</result>