A batch of clothes was sold in September (1/5), and 28% in October. How much was sold in two months?
有一批衣服，9月份卖出了(1/5)，10月份卖出了28%，两个月一共卖出了多少．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">28 / 100</gadget>
<output>7/25 = around 0.28</output>

<gadget id="calculator">(1/5) + (7/25)</gadget>
<output>12/25 = around 0.48</output>

<result>12/25 = around 0.48</result>