The volume of a cylinder is 42 cubic meters, cut it into the largest cone, what is the volume of the cone?
一个圆柱的体积是42立方米，把它削成一个最大的圆锥，圆锥的体积是多少立方米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<result>14</result>