There are 75 students in the fifth grade, which is 25 fewer than that of the whole school (1/5). How many students are there in the whole school? What is the correct column
五年级有学生75人，比全校学生的(1/5)少25人，全校有学生多少人？正确列式是多少
<gadget id="calculator">75 + 25</gadget>
<output>100</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">100 / (1/5)</gadget>
<output>500</output>

<result>500</result>