Master Wang made 125 parts, and the qualified rate is 80%. How many parts are qualified?
王师傅做了125个零件，合格率是80%，合格的零件有多少个．
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">125 * (4/5)</gadget>
<output>100</output>

<result>100</result>