The score of the football match is 2: 1, and the figures before and after the score are real and cannot be simplified. 2: 1 means two points for one team and one team 1 minute. If it is 6: 4, it means that the first team has 6 points and the first team has 4 points, not 3: 2.
In mathematics, 2: 1 is relative. I have 10 and you have 5. Our ratio is 2: 1.
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