If a sample is tested for a commodity, 98 pieces pass and 2 fail. What is the pass rate of this commodity?
抽样检验一种商品，有98件合格，2件不合格，这种商品的合格率是多少．
<gadget id="calculator">98 + 2</gadget>
<output>100</output>

<gadget id="calculator">98 / 100</gadget>
<output>49/50 = around 0.98</output>

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

<gadget id="calculator">(49/50) * 1</gadget>
<output>49/50 = around 0.98</output>

<result>49/50 = around 0.98</result>