Xiao Liang and Xiao Ming paid the same amount of money to buy a basket of pears together. Xiao Ming gets 8 kg, and Xiao Liang gets 12 kg. As a result, Xiao Liang wants to give Xiao Ming 13 yuan. How much is a kilogram of pears?
小亮和小明出同样多的钱合买一筐梨．小明分到8千克，小亮分到12千克，结果小亮要给小明13元钱，每千克梨多少元？
<gadget id="calculator">8 + 12</gadget>
<output>20</output>

<gadget id="calculator">20 / 2</gadget>
<output>10</output>

<gadget id="calculator">12 - 10</gadget>
<output>2</output>

<gadget id="calculator">13 / 2</gadget>
<output>13/2 = around 6.5</output>

<result>13/2 = around 6.5</result>