5/7+(1/4-9/14) 13/25+1/5—7/15 12/17+(1/4+1/2)

问题描述:

5/7+(1/4-9/14) 13/25+1/5—7/15 12/17+(1/4+1/2)
5/7+(1/4-9/14)
13/25+1/5—7/15
12/17+(1/4+1/2)

9/26
19/75
99/68有木有列示,求