问题
解答题
求比值. 25:35
|
答案
(1)25:35,
=25÷35,
=
;5 7
(2)
时:30分,1 4
=15分:30分,
=15÷30,
=
;1 2
(3)2.5:
,1 3
=
÷5 2
,1 3
=
×3,5 2
=
.15 2
求比值. 25:35
|
(1)25:35,
=25÷35,
=
;5 7
(2)
时:30分,1 4
=15分:30分,
=15÷30,
=
;1 2
(3)2.5:
,1 3
=
÷5 2
,1 3
=
×3,5 2
=
.15 2