Xiao Hong has read 40% of a book, and he will finish the whole book after reading 44 pages (4/5). How many pages does this book have?
小洪读一本书，已经读了40%，再读44页就读完了全书的(4/5)．这本书一共有多少页？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">40 / 100</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(4/5) - (2/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">44 / (2/5)</gadget>
<output>110</output>

<result>110</result>