There are 400 students in Xinhua Primary School, of which boys account for 3/5 of the total number. How many boys are there?
新华小学有学生400人，其中男生占总人数的(3/5)，男生多少人？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">400 * (3/5)</gadget>
<output>240</output>

<result>240</result>