问题
解答题
化简比. 85:25 0.14:0.56 2:0.5.
|
答案
(1)85:25
=(85÷5):(25÷5)
=17:5;
(2)0.14:0.56
=(0.14÷0.14):(0.56÷0.14)
=1:4;
(3)2:0.5
=(2÷0.5):(0.5÷0.5)
=4:1;
(4)
:1 30 1 6
=(
×30):(1 30
×30)1 6
=1:5.
化简比. 85:25 0.14:0.56 2:0.5.
|
(1)85:25
=(85÷5):(25÷5)
=17:5;
(2)0.14:0.56
=(0.14÷0.14):(0.56÷0.14)
=1:4;
(3)2:0.5
=(2÷0.5):(0.5÷0.5)
=4:1;
(4)
:1 30 1 6
=(
×30):(1 30
×30)1 6
=1:5.