book, Lele read the whole book (1/4) on the first day, the ratio of the number of pages read on the second day to the pages read on the first day is 4:3, and there are 60 pages left after two days. How many pages does this book have?
一本书，乐乐第一天读了全书的(1/4)，第二天读的页数与第一天读的页的比是4：3，两天后还剩下60页没读，这本书一共有多少页？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">(1/4) * (4/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/4) - (1/3)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">60 / (5/12)</gadget>
<output>144</output>

<result>144</result>