The sum of the sides of a cuboid is 54 cm, and the ratio of length, width, and height is 4:3:2. What is its volume in cubic decimeters?
一个长方体的棱长和是54厘米，长、宽、高的比是4：3：2，它的体积是多少立方分米．
<gadget id="calculator">54 / 4</gadget>
<output>27/2 = around 13.5</output>

<gadget id="calculator">4 + 3 + 2</gadget>
<output>9</output>

<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">3 / 9</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">(2/9) / 1_000</gadget>
<output>1/4_500 = around 0.000222</output>

<gadget id="calculator">(27/2) * (4/9) * (27/2) * (1/3) * (27/2) * (1/4_500)</gadget>
<output>81/1_000 = around 0.081</output>

<result>81/1_000 = around 0.081</result>