There are 280 students in the sixth grade of Zhonghua Primary School, which is more than the number of students in the fifth grade (1/6). How many students are there in fifth grade?
中华小学六年级有学生280人，比五年级的学生人数多(1/6)．五年级有学生多少人？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 + (1/6)</gadget>
<output>7/6 = around 1.166667</output>

<gadget id="calculator">280 / (7/6)</gadget>
<output>240</output>

<result>240</result>