Xiao Ming read the whole book (9/10) in 3 days, how many percent of the whole book did he read on average every day?
小明3天看了全书的(9/10)，求平均每天看了全书的几分之几？
<gadget id="calculator">9 / 10</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">(9/10) / 3</gadget>
<output>3/10 = around 0.3</output>

<result>3/10 = around 0.3</result>