Xiaohong reads a 76-page book, and there are 16 pages left after 4 days of reading. How many pages does she read on average every day?
小红看一本76页的书，看了4天后还剩16页，她平均每天看多少页？
<gadget id="calculator">76 - 16</gadget>
<output>60</output>

<gadget id="calculator">60 / 4</gadget>
<output>15</output>

<result>15</result>