题目内容
分数化成小数(除不尽的保留两位小数)
4
=
1
=
2
=
1
=
4
| 9 |
| 20 |
1
| 2 |
| 3 |
2
| 3 |
| 7 |
1
| 6 |
| 25 |
4
=4+9÷20=4+0.45=4.45;
1
=1+2÷3≈1+0.67=1.67;
2
=2+3÷7≈2+0.43=2.43;
1
=1÷6÷25=1+0.24=1.24.
| 9 |
| 20 |
1
| 2 |
| 3 |
2
| 3 |
| 7 |
1
| 6 |
| 25 |
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