The two masters and apprentices plan to process a batch of parts together. The master completed (3/4) of this batch of parts, and the apprentice completed (1/3) of this batch of parts. By what percentage did they exceed the quota?
师徒两人计划共同加工一批零件．师傅完成了这批零件的(3/4)，徒弟完成了这批零件的(1/3)，他俩超额完成了几分之几？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

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

<gadget id="calculator">(1/3) - 1</gadget>
<output>-2/3 = around -0.666667</output>

<gadget id="calculator">(3/4) + (-2/3)</gadget>
<output>1/12 = around 0.083333</output>

<result>1/12 = around 0.083333</result>