The number of parts processed by the master is more than that of the apprentice (1/7), so how much fewer parts are processed by the apprentice than the master
师傅加工零件个数比徒弟多(1/7)，则徒弟加工零件个数比师傅少多少
<gadget id="calculator">8 - 7</gadget>
<output>1</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>