Using an 18 decimeter long iron wire, it can be welded into a rectangular parallelepiped frame. The frame is 24 cm long, 12 cm wide, and how many centimeters high.
用一根18分米长的铁丝，恰好可以焊成一个长方体框架，框架长是24厘米，宽12厘米，高多少厘米．
<gadget id="calculator">10 / 4</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">18 * (5/2)</gadget>
<output>45</output>

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

<gadget id="calculator">45 - 36</gadget>
<output>9</output>

<result>9</result>