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化简比:0.2:4 16米:12厘米 76:19 12:34 45:815.

编辑:chaxungu时间:2026-04-27 14:12:22分类:小学数学题库

化简比:
0.2:416米:12厘米76:19
1
2
3
4
4
5
8
15
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.