Master Li and Master Wang jointly process a batch of parts, which can be completed in 6 hours. If Master Wang processes these parts alone, it will take 11 hours to complete. It is known that Master Li processes 5 parts per hour on average, how many parts per hour does Master Wang process on average?
李师傅和王师傅共同加工一批零件，两人合作6小时可完成．若王师傅单独加工这批零件需要11小时才能完成．已知李师傅平均每小时加工5个零件，王师傅平均每小时加工多少个零件？
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 / 11</gadget>
<output>1/11 = around 0.090909</output>

<gadget id="calculator">(1/6) - (1/11)</gadget>
<output>5/66 = around 0.075758</output>

<gadget id="calculator">5 / (5/66)</gadget>
<output>66</output>

<gadget id="calculator">66 * (1/11)</gadget>
<output>6</output>

<result>6</result>