题目内容
化简下列各比,并求比值.
:
8:0.04
2:
.
| 4 |
| 5 |
| 2 |
| 3 |
8:0.04
2:
| 4 |
| 7 |
(1)
:
,
=(
×15):(
×15),
=12:10,
=(12÷2):(10÷2),
=6:5;
:
,
=6:5,
=6÷5,
=1.2;
(2)8:0.04,
=(8×25):(0.04×25),
=200:1;
8:0.04,
=200:1,
=200÷1,
=200;
(3)2:
,
=(2×7):(
×7),
=14:4,
=(14÷2):(4÷2),
=7:1;
2:
,
=7:1,
=7÷1;
=7.
| 4 |
| 5 |
| 2 |
| 3 |
=(
| 4 |
| 5 |
| 2 |
| 3 |
=12:10,
=(12÷2):(10÷2),
=6:5;
| 4 |
| 5 |
| 2 |
| 3 |
=6:5,
=6÷5,
=1.2;
(2)8:0.04,
=(8×25):(0.04×25),
=200:1;
8:0.04,
=200:1,
=200÷1,
=200;
(3)2:
| 4 |
| 7 |
=(2×7):(
| 4 |
| 7 |
=14:4,
=(14÷2):(4÷2),
=7:1;
2:
| 4 |
| 7 |
=7:1,
=7÷1;
=7.
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