问题
解答题
化简比
|
答案
(1)14:21,
=(14÷7):(21÷7),
=2:3;
(2)0.75:
,1 8
=0.75:0.125,
=(0.75÷0.125):(0.125÷0.125),
=6:1;
(3)0.48:0.12,
=(0.48÷0.12):(0.12÷0.12),
=4:1;
(4)
:7 9
,3 2
=(
×18):(7 9
×18),3 2
=14:27.
化简比
|
(1)14:21,
=(14÷7):(21÷7),
=2:3;
(2)0.75:
,1 8
=0.75:0.125,
=(0.75÷0.125):(0.125÷0.125),
=6:1;
(3)0.48:0.12,
=(0.48÷0.12):(0.12÷0.12),
=4:1;
(4)
:7 9
,3 2
=(
×18):(7 9
×18),3 2
=14:27.