Xiao Ming reads a novel. On the first day, he read the whole book (1/8) and there are 21 more pages. On the second day, he read the whole book (1/6) 4 pages less, leaving 102 pages. How many pages does this book have? ．
小明看一本小说，第一天看了全书的(1/8)还多21页，第二天看了全书的(1/6)少4页，还剩102页，这本书共有多少页．
<gadget id="calculator">21 - 4</gadget>
<output>17</output>

<gadget id="calculator">102 + 17</gadget>
<output>119</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/8) - (1/6)</gadget>
<output>17/24 = around 0.708333</output>

<gadget id="calculator">119 / (17/24)</gadget>
<output>168</output>

<result>168</result>