To process a batch of parts, it takes 8 days for A alone to complete, 7 days for B alone, 14 days for C to complete alone, after 2 days of cooperation between three people, A rests due to illness, and B and C continue to work together. How many days to finish?
加工一批零件，甲独做要8天完成，乙独做要7天完成，丙独做要14天完成，三人合作2天后，甲因病休息，乙、丙两人继续合做还要几天完成？
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">1 / 14</gadget>
<output>1/14 = around 0.071429</output>

<gadget id="calculator">(1/8) + (1/7) + (1/14)</gadget>
<output>19/56 = around 0.339286</output>

<gadget id="calculator">(19/56) * 2</gadget>
<output>19/28 = around 0.678571</output>

<gadget id="calculator">1 - (19/28)</gadget>
<output>9/28 = around 0.321429</output>

<gadget id="calculator">(1/7) + (1/14)</gadget>
<output>3/14 = around 0.214286</output>

<gadget id="calculator">(9/28) / (3/14)</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>