The length of a cuboid is 2.5 decimeters, the width is 2 decimeters, and the thickness is 15 centimeters. What is the volume of the wood in cubic decimeters?
长方体木料长是2.5分米，宽是2分米，厚是15厘米，木料的体积是多少立方分米．
<gadget id="calculator">15 / 10</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">2.5 * 2 * (3/2)</gadget>
<output>7.5</output>

<result>7.5</result>