Xiaofang is reading a novel. Before dinner, he has read pages but has not read them (1/7); after dinner, he has read 8 more pages, and at this time the number of pages he has read is unread (1/7). /6). How many pages does this novel have?
小方在看一本小说，晚饭前，已看的、页数是未看的(1/7)；晚饭后，它又看了8页，这时已看的页数是未看的(1/6)．这本小说共有多少页？
<gadget id="calculator">1 + 6</gadget>
<output>7</output>

<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">1 + 7</gadget>
<output>8</output>

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

<gadget id="calculator">(1/7) - (1/8)</gadget>
<output>1/56 = around 0.017857</output>

<gadget id="calculator">8 / (1/56)</gadget>
<output>448</output>

<result>448</result>