Two masters and apprentices process a batch of parts, the number of parts processed by the master is more than that of the apprentice (1/3), and the processing time of the apprentice is longer than that of the master (1/8), how much faster is the work efficiency of the master than the apprentice
师徒两人加工一批零件，师傅加工的个数比徒弟多(1/3)，而徒弟加工的时间比师父多(1/8)，师傅的工作效率比徒弟快多少
<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">9 / 8</gadget>
<output>9/8 = around 1.125</output>

<gadget id="calculator">1 / (9/8)</gadget>
<output>8/9 = around 0.888889</output>

<gadget id="calculator">(4/3) / (8/9)</gadget>
<output>3/2 = around 1.5</output>

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

<gadget id="calculator">(3/2) - 1</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>