题目内容
在括号里填上合适的数.
(1)
=
=
(2)
=
=
(3)
=
=
(4)
=
=
(5)
=
=
=
=
=
(6)1=
=
=
.
(1)
| 1 |
| 2 |
| 2 |
| ( ) |
| 4 |
| ( ) |
(2)
| 1 |
| 5 |
| 3 |
| ( ) |
| ( ) |
| 30 |
(3)
| 6 |
| 15 |
| ( ) |
| 5 |
| 4 |
| ( ) |
(4)
| 5 |
| 5 |
| 3 |
| ( ) |
| ( ) |
| 99 |
(5)
| 6 |
| 18 |
| 12 |
| ( ) |
| ( ) |
| 9 |
| 24 |
| ( ) |
| 1 |
| ( ) |
| 2 |
| ( ) |
(6)1=
| 11 |
| 11 |
| 33 |
| 33 |
| ( ) |
| 300 |
分析:根据分数的基本性质,分数的分子和分母都乘或除以相同的数(0 除外),分数的大小不变.据此解答.
解答:解:(1)
=
=
;
(2)
=
=
;
(3)
=
=
;
(4)
=
=
;
(5)
=
=
=
=
=
;
(6)1=
=
=
.
| 1 |
| 2 |
| 2 |
| 4 |
| 4 |
| 8 |
(2)
| 1 |
| 5 |
| 3 |
| 15 |
| 6 |
| 30 |
(3)
| 6 |
| 15 |
| 2 |
| 5 |
| 4 |
| 10 |
(4)
| 5 |
| 5 |
| 3 |
| 3 |
| 99 |
| 99 |
(5)
| 6 |
| 18 |
| 12 |
| 36 |
| 3 |
| 9 |
| 24 |
| 72 |
| 1 |
| 3 |
| 2 |
| 6 |
(6)1=
| 11 |
| 11 |
| 33 |
| 33 |
| 300 |
| 300 |
点评:此题主要考查分数的基本性质的灵活应用.
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