题目内容
准确计算:
15×
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考点:分数乘法
专题:运算顺序及法则,文字叙述题
分析:依据分数乘法和除法的运算法则进行计算即可,要注意能约分的要先约分,再计算.
解答:
解:(1)15×
=
;
(2)
×56=49;
(3)
×
=
;
(4)
×
=
;
(5)
×
=
;
(6)
×
=
;
(7)
×
=
;
(8)
×
=
;
(9)
×
=
.
| 5 |
| 6 |
| 25 |
| 3 |
(2)
| 7 |
| 8 |
(3)
| 4 |
| 13 |
| 5 |
| 12 |
| 5 |
| 39 |
(4)
| 5 |
| 6 |
| 12 |
| 25 |
| 2 |
| 5 |
(5)
| 10 |
| 21 |
| 3 |
| 5 |
| 2 |
| 7 |
(6)
| 42 |
| 55 |
| 11 |
| 35 |
| 6 |
| 25 |
(7)
| 2 |
| 3 |
| 6 |
| 7 |
| 4 |
| 7 |
(8)
| 2 |
| 5 |
| 1 |
| 4 |
| 1 |
| 10 |
(9)
| 5 |
| 12 |
| 4 |
| 5 |
| 1 |
| 3 |
点评:此题主要考查分数乘法和除法的运算法则的灵活应用.
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