题目内容
2.1×1.1×0.54÷（5.4×1.21÷
）=______．
| 5 |
| 21 |
2.1×1.1×0.54÷（5.4×1.21÷
），
=2.1×1.1×0.54÷5.4÷1.21×
，
=（2.1×
）×（1.1÷1.21）×（0.54÷5.4），
=0.5×
×0.1，
=
×
×
，
=
．
故答案为：
．
| 5 |
| 21 |
=2.1×1.1×0.54÷5.4÷1.21×
| 5 |
| 21 |
=（2.1×
| 5 |
| 21 |
=0.5×
| 10 |
| 11 |
=
| 1 |
| 2 |
| 10 |
| 11 |
| 1 |
| 10 |
=
| 1 |
| 22 |
故答案为：
| 1 |
| 22 |
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