题目内容
化简.
| 1:0.75= |
|
(1)
=
=
;
(2)1:0.75
=1:
=(1×5):(
×5)
=5:3;
(3)
:
=(
×
):(
×
)
=
:1
=5:12.
| 68 |
| 102 |
| 68÷34 |
| 102÷34 |
| 2 |
| 3 |
(2)1:0.75
=1:
| 3 |
| 5 |
=(1×5):(
| 3 |
| 5 |
=5:3;
(3)
| 1 |
| 3 |
| 4 |
| 5 |
=(
| 1 |
| 3 |
| 5 |
| 4 |
| 4 |
| 5 |
| 5 |
| 4 |
=
| 5 |
| 12 |
=5:12.
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