题目内容
求比值
3:
| 1.5小时:45分 | 1:0.5. |
(1)3:
,
=3÷
,
=12;
(2)1.5小时:45分,
=90分:45分,
=90÷45,
=2;
(3)1:0.5,
=1÷0.5,
=2;
| 1 |
| 4 |
=3÷
| 1 |
| 4 |
=12;
(2)1.5小时:45分,
=90分:45分,
=90÷45,
=2;
(3)1:0.5,
=1÷0.5,
=2;
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