7⼀5-3⼀7+1⼀5-4⼀7怎么算

7/5-3/7+1/5-4/7怎么算
2025-03-18 04:09:54
推荐回答(3个)
回答1:

(7/5+1/5)-(3/7+4/7)=3/5

回答2:

7/5-3/7+1/5-4/7
=(7/5+1/5)-(3/7+4/7)
=8/5-1
=3/5

回答3:

5/7减7/3减7/4等于多少?