A class in the fourth grade is exhibiting homework. If each student’s homework paper is 24 cm long and 18 cm wide, how many such homework must be selected to form a square exhibition board?
四年级某班进行作业展览，如果每个同学的作业纸长24厘米，宽18厘米，那么至少要选几份这样的作业才能组成一个正方形的展板？
<gadget id="calculator">2 * 2 * 2 * 3 * 3</gadget>
<output>72</output>

<gadget id="calculator">24 * 18</gadget>
<output>432</output>

<gadget id="calculator">72 / 432</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">72 * (1/6)</gadget>
<output>12</output>

<result>12</result>