The school cafeteria bought 800 kilograms of vegetables, of which Chinese cabbage accounted for (2/5), how many kilograms of Chinese cabbage?
学校食堂买来蔬菜800千克，其中大白菜占(2/5)，大白菜有多少千克？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">800 * (2/5)</gadget>
<output>320</output>

<result>320</result>