The school shipped 12 cubic meters of sand. Spread these sands in a sand pit with a length of 5 meters and a width of 3 meters. How thick can it be? (solution with equation)
学校运来12立方米沙土．把这些沙土铺在一个长5米，宽3米的沙坑里，可以铺多厚？(用方程解答)
<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<gadget id="calculator">12 / 15</gadget>
<output>4/5 = around 0.8</output>

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