The supermarket shipped 450 boxes of apples, sold (1/3) of them on the first day, and sold the rest (2/5) on the second day, how many boxes were sold in total in two days?
超市运来苹果450箱，第一天卖出其中的(1/3)，第二天卖出剩下的(2/5)，两天共卖出多少箱？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(2/3) * (2/5)</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">(1/3) + (4/15)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">450 * (3/5)</gadget>
<output>270</output>

<result>270</result>