What is the meaning of the score?

Fraction originally refers to a part of the whole, or more generally, to any equal number of parts. The form of expression is the ratio of integer A to integer B (whether a false score in multiples of b is a score is controversial).

Fraction indicates the fraction of one number to another, or the ratio of one event to all events. Divide the unit "1" into several parts on average, and the number representing such a part or parts is called a fraction. The numerator is above and the denominator is below.

Precautions:

The denominator must not be 0, because the denominator is equivalent to a divisor. Otherwise, the equation cannot be established, and the molecule can be equal to 0, because the molecule is equivalent to the dividend. It is equivalent to dividing 0 by any number. No matter what the denominator is, the answer is 0.

(2) The numerator or denominator in a fraction cannot have irrational numbers (such as the square root of 2) after reduction, otherwise it is not a fraction.

③ Only two prime factors (2 and 5) in the denominator of the simplest fraction can be converted into finite decimals; If the denominator of simplest fraction only contains prime factors other than 2 and 5, it can become a pure cyclic decimal; If the denominator of simplest fraction contains both prime factors of 2 or 5 and prime factors other than 2 and 5, it can be converted into mixed cyclic decimals.

(Note: If it is not simplest fraction, it must be transformed into simplest fraction to judge; The simplest fraction with denominator of 2 or 5 can be converted into finite decimal, and the simplest fraction with denominator of other prime numbers can be converted into pure cyclic decimal.