题目内容
计算下列各题
①
÷6÷
②
×
÷
③15÷
×
.
①
| 3 |
| 5 |
| 1 |
| 15 |
②
| 9 |
| 5 |
| 2 |
| 3 |
| 18 |
| 35 |
③15÷
| 9 |
| 25 |
| 4 |
| 5 |
考点:分数的四则混合运算
专题:运算顺序及法则
分析:(1)依据除以一个数等于乘这个数的倒数,化题干中的除法为乘法,再运用分数乘法计算方法即可解答,
(2)(3)按照从左到右顺序计算即可解答.
(2)(3)按照从左到右顺序计算即可解答.
解答:
解:①
÷6÷
=
÷
=1
;
②
×
÷
=
÷
=2
;
③15÷
×
=
×
=33
.
| 3 |
| 5 |
| 1 |
| 15 |
=
| 1 |
| 10 |
| 1 |
| 15 |
=1
| 1 |
| 2 |
②
| 9 |
| 5 |
| 2 |
| 3 |
| 18 |
| 35 |
=
| 6 |
| 5 |
| 18 |
| 35 |
=2
| 1 |
| 3 |
③15÷
| 9 |
| 25 |
| 4 |
| 5 |
=
| 125 |
| 3 |
| 4 |
| 5 |
=33
| 1 |
| 3 |
点评:本题考查知识点:依据分数四则运算计算方法正确进行计算.
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