Xiaoqiao planned to finish reading a book in 12 days, but actually read 18 pages a day, and finished it in only 10 days. How many more pages did she actually read per day than planned?
小巧计划用12天看完一本书，实际每天看了18页，只用了10天就看完了，实际比计划每天多看多少页？
<gadget id="calculator">10 / 12</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">18 * (5/6)</gadget>
<output>15</output>

<gadget id="calculator">18 - 15</gadget>
<output>3</output>

<result>3</result>