A car is priced at 180,000 yuan, and the purchase tax is 5%. How much should I pay when buying the car?
某车标价18万元，按5%缴纳购置税，购车时应付多少钱？
<gadget id="calculator">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">18 * (1/20)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">18 + (9/10)</gadget>
<output>189/10 = around 18.9</output>

<result>189/10 = around 18.9</result>