题目内容
| 化简比 (1)168:84 | (2)0.25:1.5 | (3)
| (4)42:24 | ||||
| (5)3:0.5 | (6)27:54 | (7)1.2:0.12 | (8)
|
(1)168:84,
=(168÷84):(84÷84),
=2:1;
(2)0.25:1.5,
=(0.25×100):(1.5×100),
=25:150,
=(25÷25):(150÷25),
=1:6;
(3)
:
,
=(
×35):(
×35),
=7:30;
(4)42:24,
=(42÷6):(24÷6),
=7:4;
(5)3:0.5,
=(3×10):(0.5×10),
=30:5,
=(30÷5):(5÷5),
=6:1;
(6)27:54,
=(27÷27):(54÷27),
=1:2;
(7)1.2:0.12,
=(1.2×100):(0.12×100),
=120:12,
=(120÷12):(12÷12),
=10:1;
(8)
:
,
=(
×27):(
×27),
=12:7.
=(168÷84):(84÷84),
=2:1;
(2)0.25:1.5,
=(0.25×100):(1.5×100),
=25:150,
=(25÷25):(150÷25),
=1:6;
(3)
| 1 |
| 5 |
| 6 |
| 7 |
=(
| 1 |
| 5 |
| 6 |
| 7 |
=7:30;
(4)42:24,
=(42÷6):(24÷6),
=7:4;
(5)3:0.5,
=(3×10):(0.5×10),
=30:5,
=(30÷5):(5÷5),
=6:1;
(6)27:54,
=(27÷27):(54÷27),
=1:2;
(7)1.2:0.12,
=(1.2×100):(0.12×100),
=120:12,
=(120÷12):(12÷12),
=10:1;
(8)
| 4 |
| 9 |
| 7 |
| 27 |
=(
| 4 |
| 9 |
| 7 |
| 27 |
=12:7.
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