7⼀9+6⼀7+2⼀9-3⼀7怎么脱式计算?

2024-11-22 08:44:03
推荐回答(2个)
回答1:

7/9+6/7+2/9-3/7

=(7/9+2/9)+(6/7-3/7)

=9/9+3/7

=1+3/7

=1又3/7

回答2:

7/9+6/7+2/9-3/7
=7/9+2/9+6/7-3/7
=1+3/7
=10/7
=1又3/7