2⼀5+1⼀4-3⼀5+3⼀4的简便运算怎么算?

2024-11-30 13:51:13
推荐回答(2个)
回答1:

2/5+1/4-3/5+3/4
=1/4+3/4-3/5+2/5
=1-1/5
=4/5
2/5+1/4-3/5+3/4
=1/4+3/4-3/5+2/5
=1-1/5
=4/5

回答2:

2/5+1/4-3/5+3/4
=1/4+3/4-3/5+2/5
=1-1/5
=4/5