The beverage factory randomly checks 40 bottles of beverages from a batch of products, and 8 of them are unqualified. What is the pass rate?
饮料厂从一批产品中抽查了40瓶饮料，其中8瓶不合格，合格率是多少．
<gadget id="calculator">40 - 8</gadget>
<output>32</output>

<gadget id="calculator">32 / 40</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">(4/5) * 1</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>