题目内容
神机妙算.
÷
÷
÷
×
.
| 4 |
| 15 |
| 2 |
| 21 |
| 22 |
| 35 |
| 11 |
| 15 |
| 8 |
| 15 |
| 4 |
| 5 |
| 9 |
| 16 |
分析:根据分数除法的计算法则:除以一个不为零的数等于乘上这个数的倒数进行求解.
解答:解:
÷
=
×
=
;
÷
=
×
=
;
÷
×
=
×
×
=
×
=
.
| 4 |
| 15 |
| 2 |
| 21 |
=
| 4 |
| 15 |
| 21 |
| 2 |
=
| 14 |
| 5 |
| 22 |
| 35 |
| 11 |
| 15 |
=
| 22 |
| 35 |
| 15 |
| 11 |
=
| 6 |
| 7 |
| 8 |
| 15 |
| 4 |
| 5 |
| 9 |
| 16 |
=
| 8 |
| 15 |
| 5 |
| 4 |
| 9 |
| 16 |
=
| 2 |
| 3 |
| 9 |
| 16 |
=
| 3 |
| 8 |
点评:本题考查了简单的分数乘除法的计算,计算时要细心,注意把结果化成最简分数.
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