Wang Qiang read (2/3) of a book in 5 days, what percentage of this book he reads on average every day?
王强5天读了一本书的(2/3)，平均每天读这本书的几分之几？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(2/3) / 5</gadget>
<output>2/15 = around 0.133333</output>

<result>2/15 = around 0.133333</result>