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化简比并求比值 134:1.05 18:1.2.

编辑:chaxungu时间:2026-04-27 14:12:20分类:小学数学题库

化简比并求比值
1
3
4
:1.05
18:1.2.
(1)1
3
4
:1.05,
=(1.75×20):(1.05×20),
=35:21,
=5:3;

1
3
4
:1.05,
=5:3,
=5÷3,
=
5
3


(2)18:1.2,
=(18×5):(1.2×5),
=90:6,
=15:1;

18:1.2,
=15:1,
=15÷1,
=15.