Uncle Li’s monthly salary this year is 4,400 yuan, an increase of 10% compared to last year. How much was Uncle Li’s monthly salary last year?
李叔叔今年的月工资是4400元，比去年增加了10%，李叔叔去年的月工资是多少元？
<gadget id="calculator">10 / 100</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>