A bag of fruit candy weighs 50 grams. After increasing (1/5) and eating the increased (1/5), how many grams of fruit candy are there now?
一袋水果糖重50克，增加(1/5)后，又吃掉增加后的(1/5)，现在还有水果糖多少克．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">500 * (6/5) * (4/5)</gadget>
<output>480</output>

<result>480</result>