Xiaohong reads a story book, and reads (1/9) of the whole book on the first day, what percentage of the book is left?
小红看一本书故事书，第一天看了全书的(1/9)，还剩几分之几没看？
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1 - (1/9)</gadget>
<output>8/9 = around 0.888889</output>

<result>8/9 = around 0.888889</result>