There are 600 parts in a batch, all (3/10) were completed on the first day, and the rest (1/6) were completed on the second day, how many parts were completed in total in two days?
一批零件有600个，第一天完成了全部的(3/10)，第二天完成了剩下的(1/6)，两天一共完成了多少个零件？
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">600 * (3/10)</gadget>
<output>180</output>

<gadget id="calculator">600 - 180</gadget>
<output>420</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">420 * (1/6)</gadget>
<output>70</output>

<gadget id="calculator">180 + 70</gadget>
<output>250</output>

<result>250</result>