The TV factory produces 3,600 TV sets this year, 25% more than last year. How many units were produced last year?
电视机厂今年生产电视3600台，比去年多生产25%．去年生产多少台？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">3_600 / (5/4)</gadget>
<output>2_880</output>

<result>2_880</result>