Cut a cylinder with a volume of 51cm**3 into the largest cone, what is the volume of the cut part in cm**3.
把一个体积是51cm**3的圆柱削成一个最大的圆锥，削去部分的体积多少cm**3．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">51 * (2/3)</gadget>
<output>34</output>

<result>34</result>