题目内容
（5÷4）×（4÷3）×（3÷2）×（2÷1）=
5
5
．分析：首先根据除法与分数的联系，被除数相当于分数的分子，除号相当于分数的分数线，除数相当于分数的分母．据此用分数表示各部分的商，再根据分数乘法的计算法则，能约分的先约分，再相乘，据此简算．
解答：解：（5÷4）×（4÷3）×（3÷2）×（2÷1），
=
×
×
×2，
=5．
故答案为：5．
=
| 5 |
| 4 |
| 4 |
| 3 |
| 3 |
| 2 |
=5．
故答案为：5．
点评：此题主要根据除法与分数的联系，用分数表示商，再根据分数乘法的计算法则，先约分再计算．
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