If a cylindrical wooden block with a volume of 960 cubic centimeters is cut into the largest cone, what is the volume of the cut part?
把体积是960立方厘米的圆柱形木块，削成一个最大的圆锥，削去部分的体积是多少．
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">960 * (2/3)</gadget>
<output>640</output>

<result>640</result>