Xiao Ming borrows a book from the library, reads 8 pages a day, and finishes half of the book in 12 days. Later, he reads 4 more pages a day. How many days will it take to finish the book? (Answer with the knowledge of proportion)
小明从图书室借了一本书，每天看8页，12天看完这本书的一半，后来他每天多看4页，看完这本书还需多少天？(用比例的知识解答)
<gadget id="calculator">12 * 8</gadget>
<output>96</output>

<gadget id="calculator">8 + 4</gadget>
<output>12</output>

<gadget id="calculator">96 / 12</gadget>
<output>8</output>

<result>8</result>