Last year's rice output in Fengshou Township increased by 15% compared with the previous year. Last year's rice output was 1534.1 tons. How many tons was the rice output of the previous year?
丰收乡去年的水稻产量比前年增加了一成五，去年的水稻产量是1534.1吨，前年的水稻产量是多少吨？
<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">1_534.1 / (23/20)</gadget>
<output>1_334</output>

<result>1_334</result>