Use a 24 decimeter long iron wire to make a rectangular frame, and its length to width ratio is 3:1, then what is the area of the rectangular parallelepiped frame?
用一根长24分米的铁丝做一个长方形框架，它的长和宽比是3：1，那么这个长方体框架的面积是多少平方分米．
<gadget id="calculator">24 / 2</gadget>
<output>12</output>

<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">12 * (3/4) * 12 * (1/4)</gadget>
<output>27</output>

<result>27</result>