This year's output is more than last year's (5/9), and this year's output is last year's ((())/(())).
今年产量比去年增加(5/9)，今年产量是去年的((())/(()))．
<gadget id="calculator">5 / 9</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">1 + (5/9)</gadget>
<output>14/9 = around 1.555556</output>

<result>14/9 = around 1.555556</result>