Xiao Ming reads a book. After reading (5/8), there are 54 pages left. How many pages are there in this book?
小明看一本书，看了(5/8)后，还剩下54页，这本书共有多少页？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 - (5/8)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">54 / (3/8)</gadget>
<output>144</output>

<result>144</result>