There are 300 students in the first grade of Guangming Primary School, which is 1/5 more than the students in the second grade. How many students are there in the second grade?
光明小学一年级有学生300人，比二年级的学生多(1/5)，二年级有多少名学生？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">300 / (6/5)</gadget>
<output>250</output>

<result>250</result>