The school cafeteria buys 450 kilograms of cabbage. If the potatoes bought are less than the cabbage (1/5), how many kilograms of potatoes are bought?
学校食堂买来450千克白菜，如果买的土豆比白菜少(1/5)，买的土豆有多少千克？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

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

<gadget id="calculator">450 * (4/5)</gadget>
<output>360</output>

<result>360</result>