题目内容
求比值.
:
0.12:
15:
.
| 2 |
| 7 |
| 9 |
| 14 |
0.12:
| 1 |
| 3 |
15:
| 5 |
| 7 |
(1)
:
=
÷
=
×
=
;
(2)0.12:
=
:
=
÷
=
;
(3)15:
=15÷
=15×
=21.
| 2 |
| 7 |
| 9 |
| 14 |
=
| 2 |
| 7 |
| 9 |
| 14 |
=
| 2 |
| 7 |
| 14 |
| 9 |
=
| 4 |
| 9 |
(2)0.12:
| 1 |
| 3 |
=
| 3 |
| 25 |
| 1 |
| 3 |
=
| 3 |
| 25 |
| 1 |
| 3 |
=
| 9 |
| 25 |
(3)15:
| 5 |
| 7 |
=15÷
| 5 |
| 7 |
=15×
| 7 |
| 5 |
=21.
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