Uncle Wang (3/4) typed (1/3) of a manuscript in an hour, what fraction of the manuscript did he type in an average hour?
王叔叔(3/4)小时录入了一分文稿的(1/3)，他平均每小时录入这份文稿的几分之几？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">(1/3) / (3/4)</gadget>
<output>4/9 = around 0.444444</output>

<result>4/9 = around 0.444444</result>