For a manuscript, Xiao Ming can enter (1/12) of this manuscript every day, and Xiaohong can enter (1/18) of this manuscript every day. They each typed for 3 days, how much of this manuscript was typed in total?
一份稿件，小明每天可录入这份稿件的(1/12)，小红每天能录入这份稿件的(1/18)．他们各录入了3天，一共录入了这份稿件的几分之几？
<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(1/12) * 3</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 18</gadget>
<output>1/18 = around 0.055556</output>

<gadget id="calculator">(1/18) * 3</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/4) + (1/6)</gadget>
<output>5/12 = around 0.416667</output>

<result>5/12 = around 0.416667</result>