The company's output value this year is 11.7 million yuan, which is an increase (1/12) compared with last year. What was the output value last year?
公司今年的产值是1170万元，比去年增产了(1/12)，去年的产值是多少？
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">1 + (1/12)</gadget>
<output>13/12 = around 1.083333</output>

<gadget id="calculator">1_170 / (13/12)</gadget>
<output>1_080</output>

<result>1_080</result>