问题
解答题
先化简比,再求比值.
|
答案
(1)
:125%,3 4
=
:3 4
,5 4
=(
×4):(3 4
×4),5 4
=3:5;
:125%,3 4
=
÷3 4
,5 4
=
×3 4
,4 5
=
;3 5
(2)0.6:
,3 4
=
:3 5
,3 4
=(
×3 5
):(20 3
×3 4
),20 3
=4:5;
0.6:
,3 4
=0.6÷
,3 4
=0.6×
,4 3
=0.8;
(3)10分:
时,2 5
=10分:24分,
=10:24,
=(10÷2):(24÷2),
=5:12;
10分:
时,2 5
=10分:24分,
=10÷24,
=
.5 12