题目内容
化简比并求比值.
13:39
0.8:0.125
:
10千克:1000克.
13:39
0.8:0.125
| 2 |
| 5 |
| 1 |
| 4 |
10千克:1000克.
(1)13:39,
=(13÷13):(39÷13),
=1:3;
1:3=1÷3=
;
(2)0.8:0.125,
=(0.8×1000):(0.125×1000),
=800:125,
=(800÷25):(125÷25),
=32:5;
32:5=32÷5=
;
(3)
:
,
=(
×20):(
×20),
=8:5;
8:5=8÷5=
;
(4)10千克:1000克,
=10000克:1000克,
=(10000÷1000):(1000÷1000),
=10:1;
10:1=10÷1=10.
=(13÷13):(39÷13),
=1:3;
1:3=1÷3=
| 1 |
| 3 |
(2)0.8:0.125,
=(0.8×1000):(0.125×1000),
=800:125,
=(800÷25):(125÷25),
=32:5;
32:5=32÷5=
| 32 |
| 5 |
(3)
| 2 |
| 5 |
| 1 |
| 4 |
=(
| 2 |
| 5 |
| 1 |
| 4 |
=8:5;
8:5=8÷5=
| 8 |
| 5 |
(4)10千克:1000克,
=10000克:1000克,
=(10000÷1000):(1000÷1000),
=10:1;
10:1=10÷1=10.
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