Xiaohong does her homework at night, starting at 6:45 and finishing at 6:53. If she has to do 104 math problems in total, how many problems do she do on average per minute?
小红晚上做作业，从6：45开始做到6：53，如果她一共要做104道口算题，平均每分钟做多少道？
<gadget id="calculator">104 / 8</gadget>
<output>13</output>

<result>13</result>