
展开全部
(1)
:125%,
=
:
,
=(
×4):(
×4),
=3:5;
:125%,
=
÷
,
=
×
,
=
;
(2)0.6:
,
=
:
,
=(
×
):(
×
),
=4:5;
0.6:
,
=0.6÷
,
=0.6×
,
=0.8;
(3)10分:
时,
=10分:24分,
=10:24,
=(10÷2):(24÷2),
=5:12;
10分:
时,
=10分:24分,
=10÷24,
=
.
3 |
4 |
=
3 |
4 |
5 |
4 |
=(
3 |
4 |
5 |
4 |
=3:5;
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:
2 |
5 |
=10分:24分,
=10:24,
=(10÷2):(24÷2),
=5:12;
10分:
2 |
5 |
=10分:24分,
=10÷24,
=
5 |
12 |
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