A, B, and C jointly make a batch of parts, A makes (1/2) the total number of parts made by B and C, and B makes (1/3) the total number of parts made by A and C, and C makes 600 pieces , how many parts are there in this batch?
甲、乙、丙三人合做一批零件，甲做的是乙、丙所做总数的(1/2)，乙做的是甲、丙总数的(1/3)，丙做了600个，这批零件有多少个？
<gadget id="calculator">1 + 2</gadget>
<output>3</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 + 3</gadget>
<output>4</output>

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

<gadget id="calculator">1 - (1/3) - (1/4)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">600 / (5/12)</gadget>
<output>1_440</output>

<result>1_440</result>