Mom bought 5 apples, and Xiao Fei ate 2. What percentage of the total number of apples did Xiao Fei eat?
妈妈买了5个苹果，小飞吃了2个，小飞吃的苹果个数占苹果总个数的几分之几？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>