题目内容
| 化简比. (1)12:16 | (2)
| ||||
| (3)4.5:2.7 | (4)
|
(1)12:16,
=(12÷4):(16÷4),
=3:4;
(2)
:1
,
=(
×8):(
×8),
=6:9,
=2:3;
(3)4.5:2.7,
=(4.5×10÷9):(2.7×10÷9),
=5:3;
(4)
:0.1,
=0.6:0.1,
=(0.6×10):(0.1×10),
=6:1.
=(12÷4):(16÷4),
=3:4;
(2)
| 3 |
| 4 |
| 1 |
| 8 |
=(
| 3 |
| 4 |
| 9 |
| 8 |
=6:9,
=2:3;
(3)4.5:2.7,
=(4.5×10÷9):(2.7×10÷9),
=5:3;
(4)
| 6 |
| 10 |
=0.6:0.1,
=(0.6×10):(0.1×10),
=6:1.
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