题目内容
化简比
12:16
:
0.5:0.25.
12:16
| 3 |
| 5 |
| 5 |
| 7 |
0.5:0.25.
(1)12:16,
=(12÷4):(16÷4),
=3:4;
(2)
:
,
=(
×35):(
×35),
=21:25;
(3)0.5:0.25,
=(0.5÷0.25):(0.25÷0.25),
=2:1.
=(12÷4):(16÷4),
=3:4;
(2)
| 3 |
| 5 |
| 5 |
| 7 |
=(
| 3 |
| 5 |
| 5 |
| 7 |
=21:25;
(3)0.5:0.25,
=(0.5÷0.25):(0.25÷0.25),
=2:1.
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