The first workshop of a garment factory produces 489 pieces of clothing, and the second workshop produces 477 pieces of clothing. Every 7 pieces are packed in a box. How many boxes can the clothes produced by the two workshops hold in total?
服装厂第一车间生产服装489件，第二车间生产服装477件，每7件装一箱，两车间生产的服装总共可以装多少箱？
<gadget id="calculator">489 + 477</gadget>
<output>966</output>

<gadget id="calculator">966 / 7</gadget>
<output>138</output>

<result>138</result>