There are 348 consumers in a certain city complaining about product quality problems this year, an increase of (9/20) compared with last year. How many complaints were there last year?
某市今年投诉商品质量问题的消费者有348人，比去年增加了(9/20)，去年的投诉有多少？
<gadget id="calculator">9 / 20</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">1 + (9/20)</gadget>
<output>29/20 = around 1.45</output>

<gadget id="calculator">348 / (29/20)</gadget>
<output>240</output>

<result>240</result>