Use 1.8m wooden strips to make a picture frame, the length of the picture frame is twice the width. What is the area of this frame?
用1.8米木条做一个镜框，镜框长是宽的2倍．这个镜框的面积是多少？
<gadget id="calculator">1 + 2</gadget>
<output>3</output>

<gadget id="calculator">1.8 / 2 / 3</gadget>
<output>0.3</output>

<gadget id="calculator">0.3 * 2</gadget>
<output>0.6</output>

<gadget id="calculator">0.6 * 0.3</gadget>
<output>0.18</output>

<result>0.18</result>