A toy factory plans to have an output value of 1.2 million yuan this year, an increase of 20% over last year. How much was the output value last year?
某玩具厂计划今年产值为120万元，比去年增加20%，去年产值是多少万元？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">120 / (6/5)</gadget>
<output>100</output>

<result>100</result>