When water turns into ice, its volume increases by 1/9, and when ice turns into water, how much does its volume decrease?
水结成冰后，体积增加原来的(1/9)，冰化成水后，体帜减小多少
<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>