3⼀4-7⼀2 (-1⼀6)-(-2⼀3)-1怎么列式要过程?

2024-12-04 07:00:51
推荐回答(1个)
回答1:

3/4-7/2 +(-1/6)-(-2/3)-1
=3/4-7/2-1/6+2/3-1
=3/4-7/2+(2/3-1/6)-1
=3/4-7/2+1/2-1
=3/4-3-1
=-3又1/4