Xiao Ming reads an 840-page book. He originally planned to read 60 pages a day, but actually reads more than the original plan (1/6) every day. How many days can he actually read it?
小明看一本840页的书，原计划每天看60页，实际每天比原计划多看(1/6)，实际多少天能看完？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 + (1/6)</gadget>
<output>7/6 = around 1.166667</output>

<gadget id="calculator">60 * (7/6)</gadget>
<output>70</output>

<gadget id="calculator">840 / 70</gadget>
<output>12</output>

<result>12</result>