An electrical appliance store sold 2,400 computers this year, and the sales volume this year has increased by (1/5) compared to last year. How many computers were sold last year?
某电器商场今年销售了2400台电脑，今年的销售量比去年增加了(1/5)，去年销售电脑多少台？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">2_400 / (6/5)</gadget>
<output>2_000</output>

<result>2_000</result>