题目内容
化简比.
(1)1.5:2
(2)
:
(3)0.625:1.6.
(1)1.5:2
(2)
| 3 |
| 4 |
| 1 |
| 5 |
(3)0.625:1.6.
(1)1.5:2
=(1.5÷2):(2÷2)
=
:1
=3:4;
(2)
:
=(
×5):(
×5)
=
:1
=15:4;
(3)0.625:1.6
=
:
=(
×
):(
×
)
=
:1
=25:64.
=(1.5÷2):(2÷2)
=
| 3 |
| 4 |
=3:4;
(2)
| 3 |
| 4 |
| 1 |
| 5 |
=(
| 3 |
| 4 |
| 1 |
| 5 |
=
| 15 |
| 4 |
=15:4;
(3)0.625:1.6
=
| 5 |
| 8 |
| 8 |
| 5 |
=(
| 5 |
| 8 |
| 5 |
| 8 |
| 8 |
| 5 |
| 5 |
| 8 |
=
| 25 |
| 64 |
=25:64.
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