问题
解答题
|
答案
0.25:0.75
=0.25÷0.75
=1 3
0.25:0.75
=(0.25×4):(0.75×4)
=1:3
7.85:1.25
=7.85÷1.25
=157 25
7.85:1.25
=(7.85×20):(1.25×20)
=157:25.
|
0.25:0.75
=0.25÷0.75
=1 3
0.25:0.75
=(0.25×4):(0.75×4)
=1:3
7.85:1.25
=7.85÷1.25
=157 25
7.85:1.25
=(7.85×20):(1.25×20)
=157:25.