Use an iron wire with a length of 168 cm to make a rectangular parallelepiped frame with a ratio of length, width and height of 4:3:5. What is the volume of this frame?
用一根长168厘米的铁丝制作一长宽高之比是4：3：5长方体框架，这个框架的体积是多少？
<gadget id="calculator">168 / 4</gadget>
<output>42</output>

<gadget id="calculator">4 + 3 + 5</gadget>
<output>12</output>

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

<gadget id="calculator">42 * (1/3)</gadget>
<output>14</output>

<gadget id="calculator">3 / 12</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">42 * (1/4)</gadget>
<output>21/2 = around 10.5</output>

<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">42 * (5/12)</gadget>
<output>35/2 = around 17.5</output>

<gadget id="calculator">14 * (21/2) * (35/2)</gadget>
<output>5_145/2 = around 2_572.5</output>

<result>5_145/2 = around 2_572.5</result>