题目内容
数的改写.
(1)把下面的分数化成小数,小数化成分数.
=
=
0.28=
0.035=
(2)把下列分数中的假分数化成带分数,带分数化成假分数.
=
=
5
=
2
=
(1)把下面的分数化成小数,小数化成分数.
| 9 |
| 25 |
| 11 |
| 40 |
0.28=
0.035=
(2)把下列分数中的假分数化成带分数,带分数化成假分数.
| 17 |
| 6 |
| 64 |
| 15 |
5
| 6 |
| 7 |
2
| 5 |
| 12 |
(1)
=9÷25=0.36;
=11÷40=0.275;
0.28=
=
;
0.035=
=
.
(2)
=17÷6=2
;
=64÷15=4
;
5
=
=
;
2
=
=
.
| 9 |
| 25 |
| 11 |
| 40 |
0.28=
| 28 |
| 100 |
| 7 |
| 25 |
0.035=
| 35 |
| 1000 |
| 7 |
| 200 |
(2)
| 17 |
| 6 |
| 5 |
| 6 |
| 64 |
| 15 |
| 4 |
| 15 |
5
| 6 |
| 7 |
| 5×7+6 |
| 7 |
| 41 |
| 6 |
2
| 5 |
| 12 |
| 12×2+5 |
| 12 |
| 29 |
| 12 |
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