Uncle Wang’s family harvested 6,750 kilograms of wheat last year, an increase of 35% over the previous year. How many tons of wheat did his family harvest in the year before last?
王大爷家去年收小麦6750千克，比前年增产了三成五，他家前年收小麦多少吨．
<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">1 + (7/20)</gadget>
<output>27/20 = around 1.35</output>

<gadget id="calculator">6_750 / (27/20) / 1_000</gadget>
<output>5</output>

<result>5</result>