A batch of parts is processed, (2/9) of this batch of parts are completed on the first day and second day respectively, and 80 parts are processed on the third day, and the processing task is just completed. How many parts are there in this batch?
加工一批零件，第一天和第二天各完成了这批零件的(2/9)，第三天加工了80个，正好完成了加工任务，这批零件共有多少个？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">(2/9) * 2</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">1 - (4/9)</gadget>
<output>5/9 = around 0.555556</output>

<gadget id="calculator">80 / (5/9)</gadget>
<output>144</output>

<result>144</result>