3.5:
|
(1)3.5:
,3 4
=(3.5×20):(20×
),3 4
=70:15,
=(70÷5):(15÷5),
=14:3;
(2)3.5:
,3 4
=(3.5×4):(
×4),3 4
=14:3,
=14÷3,
=4
;2 3
故答案为:14:3,4
.2 3
3.5:
|
(1)3.5:
,3 4
=(3.5×20):(20×
),3 4
=70:15,
=(70÷5):(15÷5),
=14:3;
(2)3.5:
,3 4
=(3.5×4):(
×4),3 4
=14:3,
=14÷3,
=4
;2 3
故答案为:14:3,4
.2 3