The engineering team needs to pour 40 cuboid concrete piers, and the length, width, and height of each cement pier are 50 cm, 24 cm, and 15 cm, respectively. How many cubic meters of concrete are needed to pour these cement piers?
工程队需要浇筑40个长方体水泥墩，每个水泥墩的长、宽、高分别是50厘米、24厘米和15厘米．浇筑这些水泥墩共需要多少立方米混凝土？
<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">24 / 100</gadget>
<output>6/25 = around 0.24</output>

<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">(1/2) * (6/25) * (3/20) * 40</gadget>
<output>18/25 = around 0.72</output>

<result>18/25 = around 0.72</result>