The total wheat output of Hongxing Village this year is 55 tons, an increase (1/10) compared to last year. How many tons was the total wheat output last year?
红星村今年小麦总产量是55吨，比去年增产(1/10)，去年小麦总产量是多少万吨？
<gadget id="calculator">1 / 10</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">55 / (11/10)</gadget>
<output>50</output>

<result>50</result>