It takes 8 hours for Wang Hong to copy a manuscript alone. This manuscript is being copied by others (1/5), and the rest is handed over to Wang Hong. How many hours will it take to complete half of it?
一份稿件王红独抄需要8小时，这份稿件正由别人抄了(1/5)，剩下的交给王红抄，还要几小时才能完成一半？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/2) - (1/5)</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(3/10) / (1/8)</gadget>
<output>12/5 = around 2.4</output>

<result>12/5 = around 2.4</result>