The wheat output of Qianjin Village this year is 4,500 tons, an increase (1/8) compared to last year. What was the wheat output of Qianjin Village last year?
前进村今年小麦的产量是4500吨，比去年增加了(1/8)，前进村去年小麦产量是多少？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 + (1/8)</gadget>
<output>9/8 = around 1.125</output>

<gadget id="calculator">4_500 / (9/8)</gadget>
<output>4_000</output>

<result>4_000</result>