0.7×多少等于4分之五?

2024-11-24 03:34:51
推荐回答(2个)
回答1:

∵5/4÷0.7=25/14
∴0.7×25/I4=5/4

回答2:

0.7×□=5/4
□=5/4÷0.7=5/4÷(7/10)
=5/4×10/7=25/14
或者是
□=5/4÷0.7=1.25÷0.7=1.785714286