There is a batch of parts, Master Zhang processed all the parts (1/6), Master Li processed the rest (1/4), and the parts processed by Master Sun belonged to Master Zhang (3/4). At this time, there are still 980 parts are not processed, how many parts are there in this batch?
有一批零件，张师傅加工了全都零件的(1/6)，李师傅加工了余下的(1/4)，孙师傅加工的零件是张师傅的(3/4)，这时还有有980个零件没有加工，这批零件共有多少个？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(5/6) * (1/4)</gadget>
<output>5/24 = around 0.208333</output>

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

<gadget id="calculator">(1/6) * (3/4)</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 - (1/6) - (5/24) - (1/8)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">980 / (1/2)</gadget>
<output>1_960</output>

<result>1_960</result>