Master Wang and Master Zhang each process a batch of parts. Master Wang processes more parts than Master Zhang (1/4), and Master Zhang spends more time processing parts than Master Wang (1/7). Find the work efficiency of Master Wang How much higher than Master Zhang?
王师傅和张师傅各加工一批零件，王师傅加工的零件数比张师傅多(1/4)，而张师傅加工零件的时间比王师傅多(1/7)，求王师傅的工作效率比张师傅高几分之几？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 + (1/4)</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">1 + (1/7)</gadget>
<output>8/7 = around 1.142857</output>

<gadget id="calculator">1 / (8/7)</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">(5/4) / (7/8)</gadget>
<output>10/7 = around 1.428571</output>

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

<gadget id="calculator">(10/7) - 1</gadget>
<output>3/7 = around 0.428571</output>

<result>3/7 = around 0.428571</result>