Aunt Zhang entered a 60-page book into the computer, and entered (2/3) of the book in 3 hours. How many pages have been recorded?
张阿姨将一本60页的书录入电脑，3小时录入了这本书的(2/3)，已录入多少页？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">60 * (2/3)</gadget>
<output>40</output>

<result>40</result>