7⼀8+1⼀6-(1-1⼀4),1⼀2-(1⼀14+2⼀7)-1⼀9,

2024-11-23 03:05:33
推荐回答(2个)
回答1:

可适当减少步骤,注意结果要最简分数

回答2:

7/8+1/6-(1-1/4)

=7/8+1/6-3/4

=7/8-3/4+1/6

=1/8+1/6

=7/24

1/2-(1/14+2/7)-1/9

=1/2-(1/14+4/14)-1/9

=1/2-5/14-1/9

=7/14-5/14-1/9

=1/7-1/9

=9/63-7/63

=2/63