There are 100 fewer students in the sixth grade than in the fifth grade in Dongfang Primary School, and there are more students in the fifth grade than in the sixth grade (1/7). How many students are there in the sixth grade?
东方小学六年级比五年级少100名学生，五年级学生比六年级多(1/7)，六年级有多少名学生？
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">100 / (1/7)</gadget>
<output>700</output>

<result>700</result>