The volume of a cylinder is 12 cubic decimeters, if it is cut into a cone with the largest volume, what is the volume of the cut part?
一个圆柱的体积是12立方分米，将它削成一个体积最大的圆锥，削去部分的体积是多少立方分米．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">12 * (2/3)</gadget>
<output>8</output>

<result>8</result>