How thick can a cone-shaped sand pile with a bottom area of 18 square meters and a height of 2 meters be spread in a sand pit with a length of 5 meters and a width of 3 meters?
把一个底面积是18平方米，高2米的圆锥形沙堆，铺在一个长5米，宽3米的沙坑里，能铺多厚？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<gadget id="calculator">2 / 15</gadget>
<output>2/15 = around 0.133333</output>

<gadget id="calculator">(1/3) * 18 * (2/15)</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>