A knitting factory spot-checked 1,500 sweaters, and 1,491 were qualified. What is the pass rate?
某针织厂抽查1500件羊毛衫，合格的有1491件．合格率是多少？
<gadget id="calculator">1_491 / 1_500</gadget>
<output>497/500 = around 0.994</output>

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

<gadget id="calculator">(497/500) * 1</gadget>
<output>497/500 = around 0.994</output>

<result>497/500 = around 0.994</result>