A batch of parts is produced, and the result is 196 qualified products and 4 rejected products. What is the qualified rate of this batch of products?
生产一批零件，结果又196个合格，4个废品，这批产品的合格率是多少．
<gadget id="calculator">196 + 4</gadget>
<output>200</output>

<gadget id="calculator">196 / 200</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>