Xiao Ming reads a book, and the number of pages he has read is 12 pages less than the total number of pages (3/5), and he has read 60 pages. How many pages are there in this book?
小明看一本书，已看的页数比总页数的(3/5)少12页，已看了60页，这本书共有多少页？
<gadget id="calculator">12 + 60</gadget>
<output>72</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">72 / (3/5)</gadget>
<output>120</output>

<result>120</result>