The work efficiency ratio between master Li and his apprentice is 8:5. In the same time, master Li processed 40 parts, how many parts did the apprentice process?
李师傅和他的徒弟的工作效率比是8：5，在相同的时间内，李师傅加工了40个零件，徒弟加工了多少个零件？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">40 * (5/8)</gadget>
<output>25</output>

<result>25</result>