A suit costs 700 yuan, and the price of the trousers is 2/5 of that of the jacket. What is the price of the trousers?
一套西服700元，裤子的价格是上衣的(2/5)，裤子的价格是多少？
<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">700 / (7/5)</gadget>
<output>500</output>

<gadget id="calculator">500 * (2/5)</gadget>
<output>200</output>

<result>200</result>