The number of tourists who came to our city during the tourism festival this year reached 4,400, an increase (1/10) compared with last year. How many tourists came to the tourism festival last year?
今年旅游节来我市的游客达到4400人，比去年增加了(1/10)，去年旅游节来的游客是多少人？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">4_400 / (11/10)</gadget>
<output>4_000</output>

<result>4_000</result>