Fangfang reads a 96-page science and technology book, read (2/5) of this book on the first day, and (2/9) of this book on the second day, and still have a fraction of the book How many did you watch?
芳芳看一本96页的科技书，第一天看了这本书的(2/5)，第二天看了这本书的(2/9)，还剩这本书的几分之几没有看？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">1 - (2/5) - (2/9)</gadget>
<output>17/45 = around 0.377778</output>

<result>17/45 = around 0.377778</result>