12.8÷(6.4×3.5)怎么样简便计算

12.8÷(6.4×3.5)怎么样简便计算
2024-12-22 14:51:03
推荐回答(1个)
回答1:

12.8÷(6.4×3.5)

=12.8÷6.4÷3.5
=2÷3.5
=2÷7/2
=2x2/7
=4/7