A piece of iron wire can be made into a rectangular parallelepiped frame with a length of 8 cm, a width of 6 cm, and a height of 4 cm. If it is used to make a cube frame, what is the length of the sides of the cube frame in cm?
一根铁丝，可以做成长8厘米，宽6厘米，高4厘米的长方体框架，如果用它来做一个正方体框架，做成的正方体框架棱长是多少厘米？
<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)</gadget>
<output>6</output>

<result>6</result>