问题
解答题
化简下列各比.
|
答案
(1)6:0.75,
=(6×20):(0.75×20),
=120:15,
=8:1;
(2)
:3 4
,2 5
=(
×20):(3 4
×20),2 5
=15:8;
(3)0.75吨:500千克,
=750千克:500千克,
=(750÷250):(500÷250),
=3:2;
(4)0.2千米:500米,
=200米:500米,
=(200÷100):(500÷100),
=2:5.