The perimeter of a rectangular piece of land is 120 meters, and the width is 1/3 of the length. What is the area of this piece of land in square meters?
一块长方形地的周长是120米，其中宽比长短(1/3)，这块地的面积是多少平方米．
<gadget id="calculator">120 / 2</gadget>
<output>60</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 + (2/3)</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">60 / (5/3)</gadget>
<output>36</output>

<gadget id="calculator">36 * 36 * (2/3)</gadget>
<output>864</output>

<result>864</result>