题目内容
化简比
| 1.5:3.5 | 1:1.8 | 9分:0.4小时. |
1.5:3.5,
=(1.5×4):(3.5×4),
=6:14,
=3:7;
1:1.8,
=(1×5):(1.8×5),
=5:9;
9分:0.4小时,
=9分:24分,
=(9÷3):(24÷3),
=3:8.
=(1.5×4):(3.5×4),
=6:14,
=3:7;
1:1.8,
=(1×5):(1.8×5),
=5:9;
9分:0.4小时,
=9分:24分,
=(9÷3):(24÷3),
=3:8.
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