Wang Chao and Liu Jian both paid the same amount of money and wholesaled the same kind of notebooks at a price of 0.20 yuan each. When dividing the notebooks, Wang Chao took 13 more copies than Liu Jian. So how much should Wang Chao pay Liu Jian?
王超和刘建两人出同样多的钱，以每本0.20元的价格批发同一种本子，分本子时，王超比刘建多拿了13本．那么王超应付给刘建多少元？
<gadget id="calculator">13 / 2</gadget>
<output>13/2 = around 6.5</output>

<gadget id="calculator">(13/2) * 0.2</gadget>
<output>1.3</output>

<result>1.3</result>