It takes 8 minutes for my mother to wash clothes in a washing machine, 6 minutes for washing vegetables, and 3 minutes for mopping the floor. How long will it take at least for my mother to finish these tasks?
妈妈用洗衣机洗衣服需8分钟，洗菜用6分钟，拖地用3分钟，妈妈干完这些活，至少要多少分钟．
<gadget id="calculator">6 + 3</gadget>
<output>9</output>

<result>9</result>