I read a book and read (1/9) of the total every day. After five days of reading, there are still 48 pages left. How many pages does this book have?
我读一本书，每天读总数的(1/9)，读了五天后还剩下48页没读．这本书共有多少页？
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">(1/9) * 5</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">1 - (5/9)</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">48 / (4/9)</gadget>
<output>108</output>

<result>108</result>