This year's grain output is 15% higher than last year's, which means this year's grain output is equivalent to last year's.
今年的粮食产量比去年增产15%，也就是今年的粮食产量相当于去年的多少．
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<result>23/20 = around 1.15</result>