In a batch of products, 195 pieces are qualified and 5 pieces are unqualified. What is the pass rate of the products?
一批产品中，合格的有195件，不合格的有5件，产品的合格率是多少．
<gadget id="calculator">195 + 5</gadget>
<output>200</output>

<gadget id="calculator">195 / 200</gadget>
<output>39/40 = around 0.975</output>

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

<gadget id="calculator">(39/40) * 1</gadget>
<output>39/40 = around 0.975</output>

<result>39/40 = around 0.975</result>