A cube steel billet has a side length of 18 decimeters. Now it is melted and cast into a cuboid with a length of 12 decimeters and a width of 9 decimeters. How many decimeters is the height of the cuboid?
一块正方体钢坯，棱长是18分米，现在把它熔铸成一个长12分米，宽9分米的长方体，这个长方体的高是多少分米？
<gadget id="calculator">12 * 9</gadget>
<output>108</output>

<gadget id="calculator">18 / 108</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">18 * 18 * (1/6)</gadget>
<output>54</output>

<result>54</result>