company purchases 140 sets of clothing for 19,600 yuan. The price of a pair of trousers is (2/5) of a jacket. How much is a pair of trousers?
某公司19600元购置140套服装，一条裤子的价钱是一件上衣的(2/5)，一条裤子多少钱？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 + (2/5)</gadget>
<output>7/5 = around 1.4</output>

<gadget id="calculator">19_600 / 140 / (7/5)</gadget>
<output>100</output>

<gadget id="calculator">100 * (2/5)</gadget>
<output>40</output>

<result>40</result>