If the sum of the volumes of two cylinders and cones with the same base and height is 48 cubic decimeters, what is the difference between their volumes in cubic decimeters?
两个等底等高的圆柱和圆锥的体积之和是48立方分米，那么他们体积的差是多少立方分米．
<gadget id="calculator">3 + 1</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 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">36 * (2/3)</gadget>
<output>24</output>

<result>24</result>