If the number of pages read in a book is more than the number of unread pages (1/5), how much of the book has been read
若一本书已读的页数比未读的页数多(1/5)，则已读了这本书的多少
<gadget id="calculator">5 + 6</gadget>
<output>11</output>

<gadget id="calculator">6 / 11</gadget>
<output>6/11 = around 0.545455</output>

<result>6/11 = around 0.545455</result>