There is a pile of limestone in the shape of a cuboid, whose length, width, and height are 18 meters, 2 meters, and 1 meter respectively. If these limestones are used as a cushion for asphalt roads, and a 20-centimeter-thick pavement is laid on an 8-meter-wide roadbed, these limestones will How many meters can be paved?
有一堆长方体形状的石灰，量得长、宽、高分别是18米、2米、1米，如果将这些石灰做柏油路面的垫层，在8米宽的路基上铺20厘米厚，这些石灰能铺多少米？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 8 / (1/5)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">18 * 2 * (5/8)</gadget>
<output>45/2 = around 22.5</output>

<result>45/2 = around 22.5</result>