It takes 25 days for A and B to process a batch of parts together. First, A alone does 10 days, and then B alone processes for 30 days. At this time, a total of (3/4) of this batch of parts will be processed. What fraction of this batch of parts can be processed by team B?
甲乙两人合作加工一批零件需要25天完成．先由甲单独做10天，再由乙单独加工30天，这时共加工这批零件的(3/4)．乙队能加工这批零件的几分之几？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 25</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">(1/25) * 10</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(3/4) - (2/5)</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">30 - 10</gadget>
<output>20</output>

<gadget id="calculator">30 / 20</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(7/20) * (3/2)</gadget>
<output>21/40 = around 0.525</output>

<result>21/40 = around 0.525</result>