问题
解答题
化简下面各比. (1)2.52:0.9 (2)
(3)
|
答案
(1)2.52:0.9
=(2.52×50):(0.9×50)
=126:45
=(126÷9):(45÷9)
=14:5
(2)
:5 6 3 4
=(
×12):(5 6
×12)3 4
=10:9
(3)
:1.253 4
=(
×4):(1.25×4)3 4
=3:5.
化简下面各比. (1)2.52:0.9 (2)
(3)
|
(1)2.52:0.9
=(2.52×50):(0.9×50)
=126:45
=(126÷9):(45÷9)
=14:5
(2)
:5 6 3 4
=(
×12):(5 6
×12)3 4
=10:9
(3)
:1.253 4
=(
×4):(1.25×4)3 4
=3:5.