This year's cotton output in Jianfeng Township is 49,500 kg, an increase of 10% over last year. How many kilograms of cotton was produced in Jianfeng Township last year?
今年尖峰乡棉花产量为4.95万千克，比去年增产10%．去年尖峰乡棉花产量是多少万千克？
<gadget id="calculator">10 / 100</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">4.95 / (11/10)</gadget>
<output>4.5</output>

<result>4.5</result>