A batch of 800 kilograms of rice was shipped from the cafeteria, 1/5 of it was used on the first day, and 40% of it was used on the second day. How many kilograms were used in two days?
食堂运来一批大米800千克，第一天用去了它的(1/5)，第二天又用去了它的40%，两天一共用去了多少千克．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(1/5) + (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">800 * (3/5)</gadget>
<output>480</output>

<result>480</result>