Dig a bunker with a length of 8 meters and a width of 3 meters, and then spread a layer of yellow sand with a thickness of 2 decimeters in the bunker. How much yellow sand is needed?
挖一个长8米，宽3米的沙坑，再在沙坑中铺一层2分米厚的黄沙，需要黄沙多少方？
<gadget id="calculator">2 / 10</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">8 * 3 * (1/5)</gadget>
<output>24/5 = around 4.8</output>

<result>24/5 = around 4.8</result>