题目内容
| 3 |
| 4 |
(1)
时:15分,
=45分:15分,
=45:15,
=(45÷15):(15÷15),
=3:1;
(2)
时:15分,
=45分:15分,
=45:15,
=45÷15,
=3,
故答案为:3:1,3.
| 3 |
| 4 |
=45分:15分,
=45:15,
=(45÷15):(15÷15),
=3:1;
(2)
| 3 |
| 4 |
=45分:15分,
=45:15,
=45÷15,
=3,
故答案为:3:1,3.
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