The kindergarten aunt divides the candies into two piles. The first pile weighs 0.8 kilograms, accounting for (2/5) of all the candies. How many kilograms does the second pile weigh?
幼儿园阿姨把糖果分成两堆，第一堆重0.8千克，占所有糖果的(2/5)，第二堆糖果重多少千克？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">0.8 / (2/5)</gadget>
<output>2</output>

<gadget id="calculator">2 - 0.8</gadget>
<output>1.2</output>

<result>1.2</result>