There are 196 qualified products and 4 defective products in a batch of products. What is the passing rate of this batch of products?
一批产品经检验合格品有196个，次品有4个，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>