题目内容
化简下面各比.
| 0.15:0.3 |
|
|
(1)0.15:0.3,
=
:
,
=(
×20):(
×20),
=3:6,
=(3÷3):(6÷3),
=1:2;
(2)
:
,
=(
×8):(
×8),
=7:6;
(3)
:0.625,
=
:
,
=(
×8):(
×8),
=1:5.
=
| 3 |
| 20 |
| 3 |
| 10 |
=(
| 3 |
| 20 |
| 3 |
| 10 |
=3:6,
=(3÷3):(6÷3),
=1:2;
(2)
| 7 |
| 8 |
| 3 |
| 4 |
=(
| 7 |
| 8 |
| 3 |
| 4 |
=7:6;
(3)
| 1 |
| 8 |
=
| 1 |
| 8 |
| 5 |
| 8 |
=(
| 1 |
| 8 |
| 5 |
| 8 |
=1:5.
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