作业帮(51又7/12+34.5/6/7)*5/14
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/16 14:10:07
(51又7/12+34.5/6/7)*5/14
(51又7/12+34.5/6/7)*5/14
(51又7/12+34.5/6/7)*5/14
(51又7/12+34.5/6/7)*5/14
=(51又7/12+34.5*7/6)*5/14
=(51又7/12+30又1/4)*5/14
=81又5/6*5/14
=491/6*5/14
=2455/84
=29又19/84
11005/588