When water freezes, the volume of ice increases (1/11) compared to the volume of water, and when ice turns into water, the volume of water decreases by how much compared to the volume of ice.
水结成冰，冰的体积比水的体积增加(1/11)，冰化成水，水的体积比冰的体积减少多少．
<gadget id="calculator">1 / 11</gadget>
<output>1/11 = around 0.090909</output>

<gadget id="calculator">1 + (1/11)</gadget>
<output>12/11 = around 1.090909</output>

<gadget id="calculator">1 * (12/11)</gadget>
<output>12/11 = around 1.090909</output>

<gadget id="calculator">(12/11) - 1</gadget>
<output>1/11 = around 0.090909</output>

<gadget id="calculator">(1/11) / (12/11)</gadget>
<output>1/12 = around 0.083333</output>

<result>1/12 = around 0.083333</result>