A cylindrical wood with a volume of 120cm**3, after cutting it into the largest cone, what is the volume of the cut part in cm**3.
一个体积是120cm**3的圆柱形木料，将它削成一个最大的圆锥后，削去部分的体积是多少cm**3．
<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">120 * (2/3)</gadget>
<output>80</output>

<result>80</result>