A novel, after reading (3/7) of the total, there are still 56 pages left to read, how many pages does this book have?
一本小说，看了总数的(3/7)后，还剩下56页没看，这本书共有几页？
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">1 - (3/7)</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">56 / (4/7)</gadget>
<output>98</output>

<result>98</result>