The sum of the volumes of the cylinder and the cone with the same base and height is 48dm**3, how much dm**3 is the volume of the cone less than the volume of the cylinder.
等底等高的圆柱和圆锥体积之和是48dm**3，圆锥体积比圆柱体积少多少dm**3．
<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">48 * (3/4)</gadget>
<output>36</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">48 * (1/4)</gadget>
<output>12</output>

<gadget id="calculator">36 - 12</gadget>
<output>24</output>

<result>24</result>