Use an iron wire to make a cuboid frame with a length of 6 decimeters, a width of 5 decimeters, and a height of 4 decimeters. Use this iron wire to make a frame of a cube. What is the volume of the cube?
用一根铁丝可做一个长6分米，宽5分米，高4分米的长方体框架，用这根铁丝做一个正方体的框架，这个正方体的体积是多少？
<gadget id="calculator">6 + 5 + 4</gadget>
<output>15</output>

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

<gadget id="calculator">15 * (1/3) * 15 * (1/3) * 15 * (1/3)</gadget>
<output>125</output>

<result>125</result>