题目内容
把下面各分数化成最简分数
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考点:约分和通分
专题:运算顺序及法则
分析:分子与分母只有公因数1的分数为最简分数,本题根据分数的基本性质将题目中的分数约分化成最简分数即可.
解答:
解:(1)
=
=
;
(2)
=
=
;
(3)
=
=
;
(4)
=
=
;
(5)
=
=
;
(6)
=
=
;
(7)
=
=
;
(8)
=
=
.
| 8 |
| 10 |
| 8÷2 |
| 10÷2 |
| 4 |
| 5 |
(2)
| 45 |
| 60 |
| 45÷15 |
| 60÷15 |
| 3 |
| 4 |
(3)
| 26 |
| 65 |
| 26÷13 |
| 65÷13 |
| 2 |
| 5 |
(4)
| 120 |
| 150 |
| 120÷30 |
| 150÷30 |
| 4 |
| 5 |
(5)
| 36 |
| 54 |
| 36÷18 |
| 54÷18 |
| 2 |
| 3 |
(6)
| 22 |
| 77 |
| 22÷11 |
| 77÷11 |
| 2 |
| 7 |
(7)
| 40 |
| 70 |
| 40÷10 |
| 70÷10 |
| 4 |
| 7 |
(8)
| 9 |
| 24 |
| 9÷3 |
| 24÷3 |
| 3 |
| 8 |
点评:在将分数化成最简分数时,要注意确定分子与分母的最大公因数是多少.
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