A rectangular picture is 120 cm long and its width is long (2/3). If the picture is framed, what is the perimeter of the inside of the frame?
一幅长方形的画长120厘米，宽是长的(2/3)．如果给这幅画配上画框，那么这个画框内侧的周长是多少？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">120 * (2/3)</gadget>
<output>80</output>

<gadget id="calculator">120 + 80</gadget>
<output>200</output>

<gadget id="calculator">200 * 2</gadget>
<output>400</output>

<result>400</result>