There are 108 students in the sixth grade, equivalent to 15% of the total number of students in the school. How many students are there in the school?
六年级有学生108人，相当于全校学生总数的15%，全校有学生多少人．
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">108 / (3/20)</gadget>
<output>720</output>

<result>720</result>