A cube fish tank with a side length of 6dm is filled with water, and then the water is poured into a cuboid fish tank with a length of 8dm, a width of 6dm and a height of 6dm. How deep is the water in the tank?
一个棱长是6dm的正方体鱼缸，将它装满水，再把水倒入一个长8dm，宽6dm，高6dm的长方体鱼缸中，鱼缸里的水有多深？
<gadget id="calculator">8 * 6</gadget>
<output>48</output>

<gadget id="calculator">6 / 48</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">6 * 6 * (1/8)</gadget>
<output>9/2 = around 4.5</output>

<result>9/2 = around 4.5</result>