A cylinder and a cone have the same volume, the radius of the base of the cylinder is three times that of the cone, and the height of the cylinder is equal to that of the cone
一个圆柱和一个圆锥的体积相等，圆柱底面半径是圆锥的3倍，圆柱的高是圆锥的多少
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) / 9</gadget>
<output>1/27 = around 0.037037</output>

<result>1/27 = around 0.037037</result>