The original price of a down jacket is 400 yuan, but due to the weather, the price has increased by (2/5). How much is the current price of this down jacket?
一件羽绒衣的原价是400元，受天气影响，现在售价提高了(2/5)．这件羽绒衣的现价是多少元？
<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">400 * (7/5)</gadget>
<output>560</output>

<result>560</result>