If the volume of a cylinder is 210 cubic decimeters, what is the volume of a cone with the same base and height?
一个圆柱体积是210立方分米，与它等底等高的圆锥体的体积是多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">210 * (1/3)</gadget>
<output>70</output>

<result>70</result>