The price of 500 grams of tea leaves is 120 yuan. Buy 500 grams and get 0.05 kilograms free. Teacher Zhang wants to buy 5.5 kilograms of tea leaves. How much is the payment?
茶叶500克售价120元，买500克送0.05千克，张老师要买5.5千克茶叶，应付多少元？
<gadget id="calculator">500 / 1_000</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) + 0.05</gadget>
<output>0.55</output>

<gadget id="calculator">5.5 / 0.55</gadget>
<output>10</output>

<gadget id="calculator">10 * 120</gadget>
<output>1_200</output>

<result>1_200</result>