题目内容
求比值
15:
| 35%:4 |
| 0.4小时:45分. |
(1)15:
,
=15÷
,
=15×4,
=60;
(2)35%:4,
=
:4,
=
÷4,
=
×
,
=
;
(3)
:
,
=
÷
,
=
×
,
=
;
(4)0.4小时:45分,
=24分:45分,
=24÷45,
=
.
| 1 |
| 4 |
=15÷
| 1 |
| 4 |
=15×4,
=60;
(2)35%:4,
=
| 7 |
| 20 |
=
| 7 |
| 20 |
=
| 7 |
| 20 |
| 1 |
| 4 |
=
| 7 |
| 80 |
(3)
| 4 |
| 5 |
| 8 |
| 9 |
=
| 4 |
| 5 |
| 8 |
| 9 |
=
| 4 |
| 5 |
| 9 |
| 8 |
=
| 9 |
| 10 |
(4)0.4小时:45分,
=24分:45分,
=24÷45,
=
| 8 |
| 15 |
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