If 50 parts are processed, 2 of them are unqualified, what is the pass rate?
加工50个零件，其中2个不合格，合格率是多少．
<gadget id="calculator">50 - 2</gadget>
<output>48</output>

<gadget id="calculator">48 / 50</gadget>
<output>24/25 = around 0.96</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(24/25) * 1</gadget>
<output>24/25 = around 0.96</output>

<result>24/25 = around 0.96</result>