3⼀4+1⼀2-1⼀5的差等于的分数是多少?

2024-11-02 02:19:16
推荐回答(1个)
回答1:

3/4+1/2-1/5
=3/4+2/4-1/5
=5/4-1/5
=25/20-4/20
=21/20
=1又1/20