If a cylinder with a volume of 90 cubic centimeters is cut into a cone with the largest volume, what is the volume cut off in cubic centimeters
把一个体积是90立方厘米的圆柱削成一个体积最大的圆锥，削去的体积是多少立方厘米
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">90 * (2/3)</gadget>
<output>60</output>

<result>60</result>