问题
解答题
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答案
(1)8:12,
=(8÷4):(12÷4),
=2:3;
(2)4.5:1.8,
=(4.5×10):(1.8×10),
=45:18,
=(45÷9):(18÷9),
=5:2.
故答案为:2:3;5:2.
|
(1)8:12,
=(8÷4):(12÷4),
=2:3;
(2)4.5:1.8,
=(4.5×10):(1.8×10),
=45:18,
=(45÷9):(18÷9),
=5:2.
故答案为:2:3;5:2.