Mom bought 9 apples for Xiaohong, and Xiaohong ate 4 of them. How much of the original apples did Xiaohong eat?
妈妈给小红买了9个苹果，小红吃了4个，小红吃掉的苹果占原来苹果的多少．
<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<result>4/9 = around 0.444444</result>