It takes 3 days to process a batch of parts, and it takes 4 days for B to complete it alone. Both of them process at the same time. When completing the task, A makes 24 more parts than B. How many parts are there in total?
加工一批零件，甲独做需3天完成，乙独做需4天完成，两人同时加工，完成任务时，甲比乙多做24个，这批零件共有多少个．
<gadget id="calculator">4 / 1</gadget>
<output>4</output>

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

<gadget id="calculator">3 + 4</gadget>
<output>7</output>

<gadget id="calculator">4 / 7</gadget>
<output>4/7 = around 0.571429</output>

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">(4/7) - (3/7)</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">24 / (1/7)</gadget>
<output>168</output>

<result>168</result>