This year's output is more than last year's (1/5), and this year's output is equivalent to last year's.
今年的产量比去年多了(1/5)，今年的产量相当于去年的多少．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<result>6/5 = around 1.2</result>