The school plans to dig a sandpit with a length of 2.5 meters and a depth of 1.5 meters and a depth of 8 decimeters on the side of the playground. How many tons of fine sand are needed to fill the sandpit? Each cubic meter of fine sand weighs 1.6 tons)
学校准备在操场边挖一个长2.5米快1.5米深8分米的沙坑，填满这个沙坑需要细沙多少吨？每立方米的细沙重1.6吨)
<gadget id="calculator">8 / 10</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2.5 * 1.5 * (4/5) * 1.6</gadget>
<output>4.8</output>

<result>4.8</result>