cuboid fish tank is 9 decimeters in length, 6 decimeters in width, and 6 decimeters in water depth. If a stone with a volume of 24 cubic decimeters is put in, how much will the water level rise?
一个长方体鱼缸，长9分米，宽6分米，水深6分米，放进一块体积是24立方分米的石头，水面升高多少？
<gadget id="calculator">9 * 6</gadget>
<output>54</output>

<gadget id="calculator">24 / 54</gadget>
<output>4/9 = around 0.444444</output>

<result>4/9 = around 0.444444</result>