Xiaohong reads a comic book. On the first day, she reads 45 pages. On the second day, she reads 1/4 of the whole book. There are still 15 pages left. How many pages does this comic book have?
小红看一本漫画书，第一天看了45页，第二天看了全书的(1/4)，还有15页没有看，这本漫画书一共有多少页？
<gadget id="calculator">45 + 15</gadget>
<output>60</output>

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

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">60 / (3/4)</gadget>
<output>80</output>

<result>80</result>