If a cylinder is processed into the largest cone and 18 cubic decimeters are cut off, what is the volume of the original cylinder in cubic decimeters?
把一个圆柱加工成一个最大的圆锥，削去了18立方分米，原来圆柱的体积是多少立方分米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">18 / (2/3)</gadget>
<output>27</output>

<result>27</result>