The length of a rectangle is 18 meters and the width is 2/3 of the length. What is the area of the rectangle in square meters?
一个长方形长18米，宽是长的(2/3)，长方形的面积是多少平方米．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">18 * (2/3)</gadget>
<output>12</output>

<gadget id="calculator">18 * 12</gadget>
<output>216</output>

<result>216</result>