The factory manufactured 200 parts, and 180 passed the inspection. What is the pass rate of this batch of parts?
工厂制造了200个零件，经检验合格的有180个，这批零件的合格率是多少．
<gadget id="calculator">180 / 200</gadget>
<output>9/10 = around 0.9</output>

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

<gadget id="calculator">(9/10) * 1</gadget>
<output>9/10 = around 0.9</output>

<result>9/10 = around 0.9</result>