Workers go to work at 7:30 in the morning, get off work at 4:30 in the afternoon, and take a 1-hour break at noon. A total of 56 parts are made during working hours, how many parts are made per hour on average?
工人师傅上午7时半上班，下午4时半下班，中午休息1小时．工作时间内共做56个零件，平均每小时做多少个零件？
<gadget id="calculator">56 / 8</gadget>
<output>7</output>

<result>7</result>