Chen Yang read a storybook in 7 days. On average, he reads ((())/(())) of this book every day.
一本故事书，陈洋7天看完．他平均每天看这本书的((())/(()))．
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<result>1/7 = around 0.142857</result>