There are 630 students in Hongguang Primary School. The sixth grade students account for 1/5 of the total number of students in the school.
红光小学有学生630人，六年级学生占全校学生人数的(1/5)，六年级一班学生人数占六年级学生人数的(1/3)，六年级一班有学生多少人？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">630 * (1/5) * (1/3)</gadget>
<output>42</output>

<result>42</result>