化简比:0.2:4 16米:12厘米 ...

化简比:0.2:4 16米:12厘米 76:19 1 2 : 3 4 4 5 : 8 15 .
2025-12-15 03:58:57
推荐回答(1个)
回答1:

0.2:4,
=(0.2×5):(4×5),
=1:20;

16米:12厘米,
=1600厘米:12厘米,
=1600:12,
=(1600÷4):(12÷4),
=400:3;

76:19,
=(76÷19):(19÷19),
=4:1;

1
2
3
4

=(
1
2
×4):(
3
4
×4),
=2:3;

4
5
8
15

=(
4
5
×
15
4
):(
8
15
×
15
4
),
=3:2.