The fruit supermarket shipped 3 tons of apples, sold (2/5) of them on the first day, and sold (2/5) tons on the second day, how many tons were sold in total in two days?
水果大卖场运来3吨苹果，第一天卖出它的(2/5)，第二天卖出(2/5)吨，两天共卖出多少吨？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">3 * (2/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(6/5) + (2/5)</gadget>
<output>8/5 = around 1.6</output>

<result>8/5 = around 1.6</result>