Obviously, a willow tree was planted last year, and the height of this year has increased by (1/8), and the height of the willow tree this year is ((())/(())) of last year.
明明去年栽种一棵柳树，今年的高度增长了(1/8)，今年柳树的高度是去年的((())/(()))．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 + (1/8)</gadget>
<output>9/8 = around 1.125</output>

<result>9/8 = around 1.125</result>