The term of borrowing books in the library is 30 days, and the number of days beyond 30 days will be charged as a delayed service fee of 0.1 yuan per book. Xiao Ming borrowed a story book. If he reads 3 pages a day, he can read them all in 40 days. Please do the math for him, how many more pages can he read at least every day to return it on time without paying the delayed service fee?
在图书室借阅图书的期限为30天，30天后超过的天数要按每册0.1元收取延时服务费．小明借了一本故事书，如果每天看3页，40天才能全部看完．请你帮他算一算，他至少每天多看几页才能准时归还而不交延时服务费？
<gadget id="calculator">40 / 30</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">3 * (4/3)</gadget>
<output>4</output>

<gadget id="calculator">4 - 3</gadget>
<output>1</output>

<result>1</result>