Xiao Ming reads a story book, and has already read 85 pages, and there are 12 pages left. How much of the book have you read?
小明看一本故事书，已经看了85页，还剩12页．看了全书的几分之几？
<gadget id="calculator">85 + 12</gadget>
<output>97</output>

<gadget id="calculator">85 / 97</gadget>
<output>85/97 = around 0.876289</output>

<result>85/97 = around 0.876289</result>