Xiao Ming spent 26 yuan to buy stamps with denominations of 50 cents and 80 cents. The quantities of the two stamps are the same. How many of the two stamps did Xiao Ming buy?
小明花了26元钱买了面额为5角和8角的邮票，两种邮票的数量相同，小明买的两种邮票各有多少枚？
<gadget id="calculator">5 / 10</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">8 / 10</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(1/2) + (4/5)</gadget>
<output>13/10 = around 1.3</output>

<gadget id="calculator">26 / (13/10)</gadget>
<output>20</output>

<result>20</result>