题目内容
根据分数的基本性质,把下列的等式补充完整.
=
=
=
=
=
=
=
=
=
=
=
=
=
.
| 1 |
| 4 |
| ( ) |
| 12 |
| ( ) |
| 36 |
| 7 |
| ( ) |
| ( ) |
| ( ) |
| 8 |
| 16 |
| 8÷( ) |
| ( )÷( ) |
| 2 |
| ( ) |
| 1 |
| 5 |
| 1×2 |
| ( )×( ) |
| 2 |
| ( ) |
| 6 |
| 7 |
| 12 |
| ( ) |
| 48 |
| 42 |
| ( ) |
| 6 |
| 2 |
| ( ) |
| 1 |
| 2 |
| ( ) |
| 8 |
| 2 |
| 3 |
| ( ) |
| 9 |
考点:分数的基本性质
专题:分数和百分数
分析:根据分数的基本性质:分数的分子和分母同时乘或除以一个相同的数(0除外),分数的大小不变.依此进行填空解答.
解答:
解:
=
=
=
=
;
=
=
;
=
=
;
=
;
=
=
;
=
;
=
.
故答案为:3,9,28,2,8;4,16,2,4;5,2,10;14;
,
;4;6.
| 1 |
| 4 |
| 3 |
| 12 |
| 9 |
| 36 |
| 7 |
| 28 |
| 2 |
| 8 |
| 8 |
| 16 |
| 8÷4 |
| 16÷4 |
| 2 |
| 4 |
| 1 |
| 5 |
| 1×2 |
| 5×2 |
| 2 |
| 10 |
| 6 |
| 7 |
| 12 |
| 14 |
| 48 |
| 42 |
| ||
| 6 |
| 2 | ||
|
| 1 |
| 2 |
| 4 |
| 8 |
| 2 |
| 3 |
| 6 |
| 9 |
故答案为:3,9,28,2,8;4,16,2,4;5,2,10;14;
| 48 |
| 7 |
| 7 |
| 4 |
点评:此题考查学生对分数基本性质的掌握情况.
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