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What does it mean to add a dot to the number? (Math, not music)
If so, this is a very biased topic. ...

The ancient Egyptians used fractions in a strange way. When they represent fractions, they usually add a point to natural numbers. Adding a dot to 5 means that the number is 1/5. Adding a dot to 7 indicates that the number is1/7;

And they only use fractions where the molecule is 1. .

According to the above statement, the point on 2 1 should mean "1/2 1". .

1/2 1 should =0.0476 190476 190 infinite loop, in which the loop segment is 476 190.

Belongs to a rational number! !