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What is the relationship between the basic nature of unit 6 score in the sixth grade of primary school mathematics and the basic nature of decimal?
Basic properties of a fraction: the numerator and denominator of a fraction expand or contract at the same time by the same multiple (except 0), and the size of the fraction remains unchanged.

Basic properties of decimals: add 0 or remove 0 at the end of decimals, and the size of decimals remains unchanged.

The relationship between them:

For example, 0.20 means 20/ 100,

When the "0" at the end of the decimal is removed, it is 0.2, which means 2/ 10, which is equivalent to reducing the numerator and denominator of the fraction by 10 times.

Adding "0" at the end of the decimal is 0.200, which means 200/ 1000, which is equivalent to expanding the numerator and denominator of the fraction by 10 times.

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