There are two iron wires of the same length. The first wire is welded into a rectangular parallelepiped frame with a length of 8 cm, a width of 6 cm, and a height of 4 cm. The second wire is welded into a cube frame. Which frame has the largest volume? How big is it?
有两根一样长的铁丝，第一根焊接成长8厘米，宽6厘米，高4厘米的长方体框架，第二根焊接成正方体框架，哪个框架的体积大？大多少？
<gadget id="calculator">8 + 6 + 4</gadget>
<output>18</output>

<gadget id="calculator">4 / 12</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">18 * (1/3) * 18 * (1/3) * 18 * (1/3)</gadget>
<output>216</output>

<gadget id="calculator">8 * 18 * (1/3) * 4</gadget>
<output>192</output>

<gadget id="calculator">216 - 192</gadget>
<output>24</output>

<result>24</result>