If a cylinder is cut into the largest cone and 9 cubic decimeters are cut off, what is the volume of the cone in cubic decimeters?
将一个圆柱削成一个最大的圆锥，削去了9立方分米，圆锥的体积是多少立方分米．
<gadget id="calculator">9 / 2</gadget>
<output>9/2 = around 4.5</output>

<result>9/2 = around 4.5</result>