A cuboid fish tank is (9/10)m long and (4/5)m wide, and there is (9/25)m**3 water in it. How deep is the water in m?
一个长方体鱼缸长(9/10)m，宽(4/5)m，里面有(9/25)m**3的水，水深多少m？
<gadget id="calculator">9 / 25</gadget>
<output>9/25 = around 0.36</output>

<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(9/25) / (9/10) / (4/5)</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>