A is taller than B (1/10), and B is shorter than A by a fraction.
甲身高比乙高(1/10)，乙比甲矮几分之几多少．
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">(1/10) / (11/10)</gadget>
<output>1/11 = around 0.090909</output>

<result>1/11 = around 0.090909</result>