Xiaoming's mother went to the street to sell cabbage. She sold 45.6 kilograms in the morning and 32.4 kilograms in the afternoon. The total price was 117 yuan. How much is the average price per kilogram of cabbage?
小明的妈妈上街卖白菜，上午卖了45.6千克，下午卖了32.4千克，一共卖了117元，平均每千克白菜多少钱？
<gadget id="calculator">45.6 + 32.4</gadget>
<output>78</output>

<gadget id="calculator">117 / 78</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>