Xiaoliang reads a book. He reads (1/4) of the total pages on the first day, (2/3) on the second day, and 40 pages on the second day. How many pages are there in this book? Page?
小亮看一本书，第一天看了总页数的(1/4)，第二天看了第一天的(2/3)，第二天看了40页，这本书共多少页？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">40 / (2/3) / (1/4)</gadget>
<output>240</output>

<result>240</result>