题目内容
| 1 |
| 5 |
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| 4 |
| 5 |
分析:求商,要知道被除数、除数,
与
的和是被除数,1与
的差是除法.
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| 5 |
| 1 |
| 4 |
| 4 |
| 5 |
解答:解:(
+
)÷(1-
),
=
÷
;
=
.
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| 5 |
| 1 |
| 4 |
| 4 |
| 5 |
=
| 9 |
| 20 |
| 1 |
| 5 |
=
| 9 |
| 4 |
点评:根据要求,关键是找出被除数和除数即可求商.
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