化简比:0.25:0.75 1:0.3 0.375:14 827:29 ...
化简比:0.25:0.751:0.30.375:14827:295厘米:0.3米3时20分:50分....
化简比:0.25:0.75 1:0.3 0.375:14 827:29 5厘米:0.3米 3时20分:50分.
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(1)0.25:0.75,
=(0.25×4):(0.75×4),
=1:3;
(2)1:0.3,
=(1×10):(0.3×10),
=10:3;
(3)0.375:
,
=(0.375×8):(
×8),
=3:2;
(4)
:
,
=(
×27):(
×27),
=8:6,
=(8÷2):(6÷2),
=4:3;
(5)5厘米:0.3米,
=5厘米:(0.3×100厘米),
=5:30,
=(5÷5)::30÷5),
=1:6;
(6)3时20分:50分,
=(3×60分+20分):50分,
=200:50,
=(200÷50):(50÷50),
=4:1.
=(0.25×4):(0.75×4),
=1:3;
(2)1:0.3,
=(1×10):(0.3×10),
=10:3;
(3)0.375:
1 |
4 |
=(0.375×8):(
1 |
4 |
=3:2;
(4)
8 |
27 |
2 |
9 |
=(
8 |
27 |
2 |
9 |
=8:6,
=(8÷2):(6÷2),
=4:3;
(5)5厘米:0.3米,
=5厘米:(0.3×100厘米),
=5:30,
=(5÷5)::30÷5),
=1:6;
(6)3时20分:50分,
=(3×60分+20分):50分,
=200:50,
=(200÷50):(50÷50),
=4:1.
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