6×小括号十八分之二加三十分之七小括号用简便方法?

2025-04-05 15:05:17
推荐回答(2个)
回答1:

6X(2/18+7/30)
=6X1/9+6X7/30
=2/3+7/5
=10/15+21/15
=31/15
=2又15分之1

回答2:

6х(2/18+7/30)
=6х2/18 +6х7/30
=2/3+7/5=10/15+21/15
=31/15