Processing the same batch of parts, the master's working time is less than that of the apprentice (1/4), how much slower is the apprentice's work efficiency than the master?
加工相同的一批零件，师傅的工作时间比徒弟少(1/4)，徒弟的工作效率比师傅慢百分之几？
<gadget id="calculator">4 / 1</gadget>
<output>4</output>

<gadget id="calculator">4 - 3</gadget>
<output>1</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>