Xiaoxiao’s food expenditure accounted for 55% of the total expenditure last month, 220 yuan more than other expenditures. How much did Xiaoxiao’s total expenditure last month?
笑笑家上月食品支出占总支出的55%，比其它支出多220元，笑笑家上个月总支出多少钱？
<gadget id="calculator">55 / 100</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">1 - (11/20)</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">(11/20) - (9/20)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">220 / (1/10)</gadget>
<output>2_200</output>

<result>2_200</result>