题目内容
约分.(把下列分数化成最简分数)
(1)
(2)
(3)
(4)
.
(1)
| 15 |
| 25 |
| 24 |
| 42 |
| 12 |
| 60 |
| 27 |
| 36 |
(1)
=
=
;
(2)
=
=
;
(3)
=
=
;
(4)
=
=
;
| 15 |
| 25 |
| 15÷5 |
| 25÷5 |
| 3 |
| 5 |
(2)
| 24 |
| 42 |
| 24÷6 |
| 42÷6 |
| 4 |
| 7 |
(3)
| 12 |
| 60 |
| 12÷12 |
| 60÷12 |
| 1 |
| 5 |
(4)
| 27 |
| 36 |
| 27÷9 |
| 36÷9 |
| 3 |
| 4 |
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