题目内容
| 3 |
| 4 |
(1)
:0.25,
=
:
,
=(
×4):(
×4),
=3:1;
(2)1.5小时:45分,
=90分:45分,
=90÷45,
=2;
故答案为:3:1;2.
| 3 |
| 4 |
=
| 3 |
| 4 |
| 1 |
| 4 |
=(
| 3 |
| 4 |
| 1 |
| 4 |
=3:1;
(2)1.5小时:45分,
=90分:45分,
=90÷45,
=2;
故答案为:3:1;2.
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