It is known that the volume of water will increase (1/9) when it freezes, and how much will the volume decrease when the ice melts into water.
已知水结冰后体积会增加(1/9)，当这些冰融化成水后，体积会减少多少．
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1 + (1/9)</gadget>
<output>10/9 = around 1.111111</output>

<gadget id="calculator">(1/9) / (10/9)</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>