A cube fish tank with a side length of 12 decimeters is filled with water. Pour water into a cuboid fish tank with a length of 18 decimeters, a width of 10 decimeters, and a height of 12 decimeters. How deep is the water? (The thickness of the fish tank is ignored)
一个棱长是12分米的正方体鱼缸，里面装满水，把水倒入一个长为18分米，宽为10分米，高为12分米的长方体鱼缸里，水有多深？(鱼缸厚度忽略不计)
<gadget id="calculator">18 * 10</gadget>
<output>180</output>

<gadget id="calculator">12 / 180</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">12 * 12 * (1/15)</gadget>
<output>48/5 = around 9.6</output>

<result>48/5 = around 9.6</result>