问题
填空题
求下列比的比值: 18:48 0.25:3
|
答案
(1)18:48,
=18÷48,
=
,18 48
=
;3 8
(2)0.25:3,
=
:3,1 4
=
÷3,1 4
=
;1 12
(3)
:5 7
,25 49
=
÷5 7
,25 49
=
×5 7
,49 25
=
.7 5
求下列比的比值: 18:48 0.25:3
|
(1)18:48,
=18÷48,
=
,18 48
=
;3 8
(2)0.25:3,
=
:3,1 4
=
÷3,1 4
=
;1 12
(3)
:5 7
,25 49
=
÷5 7
,25 49
=
×5 7
,49 25
=
.7 5