This year's wheat output in Hongguang Township is 92,000 kilograms, an increase of 15% over last year. What was the output of wheat last year in tens of thousands of kilograms?
今年红光乡的小麦产量是9.2万千克，比去年增产15%．去年的小麦产量是多少万千克．
<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>

<gadget id="calculator">9.2 / (23/20)</gadget>
<output>8</output>

<result>8</result>