The area of a rectangular land is 360m**2, its width is 12m, what is the ratio of width to length
-块长方形地的而积是360m**2，它的宽是12m，宽比长短多少
<gadget id="calculator">360 / 12</gadget>
<output>30</output>

<gadget id="calculator">30 - 12</gadget>
<output>18</output>

<result>18</result>