题目内容
化简下面各比
| 21:35 |
|
|
36:2. |
(1)21:35,
=(21÷7):(35÷7),
=3:5;
(2)
:
,
=(
×36):(
×36),
=30:16,
=(30÷2):(16÷2),
=15:8;
(3)
:
,
=(
×9):(
×9),
=6:3,
=(6÷3):(3÷30,
=2:1;
(4)36:2,
=(36÷2):(2÷2),
=18:1.
=(21÷7):(35÷7),
=3:5;
(2)
| 5 |
| 6 |
| 4 |
| 9 |
=(
| 5 |
| 6 |
| 4 |
| 9 |
=30:16,
=(30÷2):(16÷2),
=15:8;
(3)
| 2 |
| 3 |
| 3 |
| 9 |
=(
| 2 |
| 3 |
| 3 |
| 9 |
=6:3,
=(6÷3):(3÷30,
=2:1;
(4)36:2,
=(36÷2):(2÷2),
=18:1.
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