If a sample is tested for a commodity, 76 pieces are qualified and 4 are unqualified. What is the pass rate of this commodity?
抽样检验一种商品，有76件合格，4件不合格，这种商品的合格率是多少．
<gadget id="calculator">76 + 4</gadget>
<output>80</output>

<gadget id="calculator">76 / 80</gadget>
<output>19/20 = around 0.95</output>

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

<gadget id="calculator">(19/20) * 1</gadget>
<output>19/20 = around 0.95</output>

<result>19/20 = around 0.95</result>