问题
解答题
化简下面各比
|
答案
(1)
:5 6
,1 2
=(
×6):(5 6
×6),1 2
=5:3,
(2)3cm:60km,
=3cm:6000000cm,
=(3÷3):(6000000÷3),
=1:2000000,
(3)1.25:2,
=(1.25×4):(2×4),
=5:8,
(4)4.5:6,
=(4.5÷1.5):(6÷1.5),
=3:4.
化简下面各比
|
(1)
:5 6
,1 2
=(
×6):(5 6
×6),1 2
=5:3,
(2)3cm:60km,
=3cm:6000000cm,
=(3÷3):(6000000÷3),
=1:2000000,
(3)1.25:2,
=(1.25×4):(2×4),
=5:8,
(4)4.5:6,
=(4.5÷1.5):(6÷1.5),
=3:4.