A cube glass fish tank, measured from the inside, has a length of 2dm, a height of 15cm, and a width of 12cm. Pour 5.5 liters of water into it. How many decimeters does the water overflow?
一个正方体玻璃鱼缸，从里面量，长2dm，高15cm，宽12cm，倒入5.5升的水，水溢出了多少立方分米？
<gadget id="calculator">15 / 10</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">12 / 10</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">2 * (3/2) * (6/5)</gadget>
<output>18/5 = around 3.6</output>

<gadget id="calculator">5.5 - (18/5)</gadget>
<output>1.9</output>

<result>1.9</result>