问题
解答题
化简下面各比并求出比值. 75:35 6:
|
答案
75:35
=(75÷5):(35÷5)
=15:7
75:35
=15:7
=15 7
6:2 3
=(6×3÷2):(
×3÷2)2 3
=9:1
6:2 3
=9:1
=9
5.6:4.2
=(5.6×5):(4.2×5)
=28:21
=(28÷7):(21÷7)
=4:3
5.6:4.2
=4:3
=4 3
:5 6 5 8
=(
×24÷5):(5 6
×24÷5)5 8
=4:3
:5 6 5 8
=4:3
=
.4 3