If the volume of a cylinder is 4.5 cubic decimeters, what is the volume of a cone with the same base and height?
一个圆柱的体积是4.5立方分米，与它等底等高的圆锥的体积是多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">4.5 * (1/3)</gadget>
<output>1.5</output>

<result>1.5</result>