After pouring 12L of water into a cuboid glass fish tank with a length of 5dm and a width of 3dm, what is the height of the water surface in decimeters?
在一个长5dm，宽3dm的长方体玻璃鱼缸中倒入12L水后，水面高多少分米？
<gadget id="calculator">12 / 3 / 5</gadget>
<output>4/5 = around 0.8</output>

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