题目内容
(1-
÷
)×
.
| 1 |
| 6 |
| 5 |
| 9 |
| 5 |
| 14 |
分析:先算括号内的除法,再算括号内的减法,最后算括号外的乘法.
解答:解:(1-
÷
)×
,
=(1-
×
)×
,
=(1-
)×
,
=
×
,
=
.
| 1 |
| 6 |
| 5 |
| 9 |
| 5 |
| 14 |
=(1-
| 1 |
| 6 |
| 9 |
| 5 |
| 5 |
| 14 |
=(1-
| 3 |
| 10 |
| 5 |
| 14 |
=
| 7 |
| 10 |
| 5 |
| 14 |
=
| 1 |
| 4 |
点评:此题考查了分数的四则混合运算,注意运算顺序和运算法则.
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