问题
解答题
求比值
|
答案
(1)
:1.42 3
=
÷1.42 3
=
÷2 3 7 5
=
×2 3 5 7
=
;10 21
(2)2.6:12
=2.6÷12
=
×13 5 1 12
=
;13 60
(3)30%:5 8
=30%÷5 8
=
×3 10 8 5
=
;12 25
(4)40分:2小时
=40分:120分
=40÷120
=
.1 3
求比值
|
(1)
:1.42 3
=
÷1.42 3
=
÷2 3 7 5
=
×2 3 5 7
=
;10 21
(2)2.6:12
=2.6÷12
=
×13 5 1 12
=
;13 60
(3)30%:5 8
=30%÷5 8
=
×3 10 8 5
=
;12 25
(4)40分:2小时
=40分:120分
=40÷120
=
.1 3