To input an article into the computer, it takes 15 minutes for Xiao Ming to type alone, and 12 minutes for Xiao Hua. Xiao Ming plays for 5 minutes first, then Xiao Hua continues to play, how many minutes will it take to finish playing?
把一篇文章输入电脑，小明单独打要15分钟，小华要12分钟．小明先打5分钟后小华接着打，还要多少分钟打完．
<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">(1/15) * 5</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">1 / 12</gadget>
<output>1/12 = around 0.083333</output>

<gadget id="calculator">(2/3) / (1/12)</gadget>
<output>8</output>

<result>8</result>