Xiaohong reads a book, reads 6 pages a day, and can finish it in 20 days. If you limit reading to 15 days, how many pages do you need to read on average per day?
小红看一本书，每天看6页，20天可看完．如果限定15天看完，平均每天需要看多少页？
<gadget id="calculator">20 / 15</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">6 * (4/3)</gadget>
<output>8</output>

<result>8</result>