题目内容
| 6.4:8= |
| 0.375:0.625= | 8:
|
(1)6.4:8,
=(6.4×5):(8×5),
=32:40,
=4:5;
6.4:8,
=4:5,
=4÷5,
=
.
(2)
:
,
=(
×6):(
×6),
=1:4;
:
,
=1:4,
=1÷4,
=
.
(3)0.375:0.625,
=(0.375×8):(0.625×8),
=3:5;
0.375:0.625,
=3:5,
=3÷5,
=
.
(4)8:
,
=(8×9):(
×9),
=72:8,
=9:1;
8:
,
=9:1,
=9÷1,
=9.
=(6.4×5):(8×5),
=32:40,
=4:5;
6.4:8,
=4:5,
=4÷5,
=
| 4 |
| 5 |
(2)
| 1 |
| 6 |
| 2 |
| 3 |
=(
| 1 |
| 6 |
| 2 |
| 3 |
=1:4;
| 1 |
| 6 |
| 2 |
| 3 |
=1:4,
=1÷4,
=
| 1 |
| 4 |
(3)0.375:0.625,
=(0.375×8):(0.625×8),
=3:5;
0.375:0.625,
=3:5,
=3÷5,
=
| 3 |
| 5 |
(4)8:
| 8 |
| 9 |
=(8×9):(
| 8 |
| 9 |
=72:8,
=9:1;
8:
| 8 |
| 9 |
=9:1,
=9÷1,
=9.
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