The green vegetable base produced 650,000 tons of vegetables last year, an increase (1/12) over the previous year. How many tons of vegetables were produced in the previous year?
绿色蔬菜基地，去年生产蔬菜65万吨，比前年增产(1/12)，前年生产蔬菜多少万吨？
<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">65 / (13/12)</gadget>
<output>60</output>

<result>60</result>