On the day of the National Day, an electrical appliance firm sold a Huari refrigerator and a Haier refrigerator, both at 2,500 yuan. When the account was settled in the evening, the accountant found that Huari Refrigerator made a profit (1/4), while Haier Refrigerator lost (1/5). Please do the math: On this day, did the firm make a profit or lose it? How much did you earn (lose)?
国庆节一天，某电器商行卖出了一台华日冰箱和一台海尔冰箱，售价都是2500元．傍晚算账时，会计发现，华日冰箱赚了(1/4)，海尔冰箱则亏了(1/5)．请你算一算：这天，这个商行是赚了还是赔了？赚(赔)了多少元？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2_500 / (4/5)</gadget>
<output>3_125</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">2_500 / (5/4)</gadget>
<output>2_000</output>

<gadget id="calculator">3_125 + 2_000</gadget>
<output>5_125</output>

<gadget id="calculator">2_500 * 2</gadget>
<output>5_000</output>

<gadget id="calculator">5_125 - 5_000</gadget>
<output>125</output>

<result>125</result>