In a batch of products, 98 are qualified and 2 are unqualified. What is the qualified rate of the products?
在一批产品中，合格的有98个，不合格的有2个，产品合格率为多少．
<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>