The total number of students in Dagao Primary School (2/9) is 172. How many students are there in our school?
大高小学全校学生人数的(2/9)是172人，我们学校共有学生多少人．
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">172 / (2/9)</gadget>
<output>774</output>

<result>774</result>