1.8千克=1800克,
(1)200:1800,
=(200÷200):(1800÷200),
=1:9;
(2)200:(200+1800),
=200:2000,
=1:10;
故答案为:1:9,1:10.
在1.8千克的水中,放入200克盐,则盐与水的比是_,盐与盐水的比_.
在1.8千克的水中,放入200克盐,则盐与水的比是______,盐与盐水的比______.
数学人气:488 ℃时间:2020-03-22 15:33:43
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