A square steel ingot with a side length of 8m is melted and cast into a cuboid steel with a length of 10m and a width of 4m. How thick is the steel after melting? (solution by equation)
把一块棱长8m的正方体钢锭，熔铸成一块长10m，宽4m的长方体钢材，熔铸后的钢材有多厚？(用方程解)
<gadget id="calculator">8 * 8 * 8</gadget>
<output>512</output>

<gadget id="calculator">10 * 4</gadget>
<output>40</output>

<gadget id="calculator">512 / 40</gadget>
<output>64/5 = around 12.8</output>

<result>64/5 = around 12.8</result>