The volume of a cylinder is 60 cubic decimeters, how much more than the volume of a cone with the same base and height.
一个圆柱体积是60立方分米，比与它等底等高的圆锥体体积多多少．
<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">60 * (2/3)</gadget>
<output>40</output>

<result>40</result>