The original price of a pair of leather shoes is 50 yuan. First, the price is increased by 20%, and now the price is reduced by 20%. How much is a pair of leather shoes now?
一双皮鞋原价50元，先加价20%出售，现又降价20%，现在一双皮鞋多少元？
<gadget id="calculator">20 / 100</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">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">50 * (6/5) * (4/5)</gadget>
<output>48</output>

<result>48</result>