The perimeter of a rectangle is 50 decimeters, and its width is 2/3 of its length. What is the area of this rectangle in square decimeters?
长方形的周长是50分米，宽是长的(2/3)，这个长方形的面积是多少平方分米．
<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">50 / 2 / (5/3)</gadget>
<output>15</output>

<gadget id="calculator">15 * (2/3)</gadget>
<output>10</output>

<gadget id="calculator">15 * 10</gadget>
<output>150</output>

<result>150</result>