There are 112 books in the two layers. If (1/9) of the second layer is moved to the first layer, the number of books in the two layers is equal. How many books are there in the second layer?
两层书共有112本，若将第二层的(1/9)移到第一层，两层书的本数相等，第二层原有多少本书？
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1 - (1/9)</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">112 / 2 / (8/9)</gadget>
<output>63</output>

<result>63</result>