The school cafeteria shipped 800kg of rice and ate (5/8), how many kilograms did you eat?
学校食堂运来800kg大米，吃了(5/8)，吃了多少kg？
<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>