Uncle Zhang and Uncle Wang made a batch of machine parts. Uncle Zhang made 60&% of all the parts, 80 more than Uncle Wang. How many parts are there in total?
张叔叔和王叔叔两人制作一批机器零件，张叔叔做了全部零件的60&%，比王叔叔多做了80个，这批零件共有多少个？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(3/5) - (2/5)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">80 / (1/5)</gadget>
<output>400</output>

<result>400</result>