Xiaoli reads a story book. On the first day, she read the whole book (1/12) and there are 18 more pages. On the second day, she read the whole book (1/5) less than 5 pages. At this time, there are still 73 pages left. How many pages are there in this storybook?
小丽读一本故事书，第一天读了全书的(1/12)还多18页，第二天读了全书的(1/5)少5页，这时还剩下73页，这本故事书共有多少页．
<gadget id="calculator">18 - 5</gadget>
<output>13</output>

<gadget id="calculator">73 + 13</gadget>
<output>86</output>

<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/12) + (1/5)</gadget>
<output>17/60 = around 0.283333</output>

<gadget id="calculator">1 - (17/60)</gadget>
<output>43/60 = around 0.716667</output>

<gadget id="calculator">86 / (43/60)</gadget>
<output>120</output>

<result>120</result>