5⼀9-1⼀25+4⼀9-4⼀25=?简便计算

2024-12-01 22:35:21
推荐回答(3个)
回答1:

5/9-1/25+4/9-4/25

=(5/9+4/9)-(1/25+4/25)
=1-1/5
=4/5

回答2:

5/9-1/25+4/9-4/25=(5/9+4/9)-(1/25+4/25)
=1-1/5
=4/5

回答3:

5/9-1/25+4/9-4/25
=5/9+4/9-1/25-4/25
=1-1/5
=4/5