The analysis is as follows:

Three quarters is equal to 1, and three thirds is equal to 1.

The numerator is above the denominator, which can also be regarded as division. Divide the numerator by the denominator (because 0 can't be divided in division, the denominator can't be 0 (for example, 1 0 means that the unit "1"is evenly divided into 0 parts, and it is meaningless to take 10 parts). On the contrary, division can also be expressed as a fraction.

Another property of the fraction is that when the numerator and denominator are multiplied or divided by the same number (except 0), the size of the fraction remains unchanged. Therefore, each score has an infinite number of equal parts. Using this property, we can be on and off.

Extended data:

The earliest fraction was the reciprocal of an integer: an ancient symbol representing one-half, one-third, one-quarter and so on. Egyptians used the Egyptian score of 1000 BC. About 4000 years ago, Egyptians separated with slightly different scores.

They use the least common multiple and unit fraction. Their method gives the same answer as the modern method. Egyptians also have different representations of Akhmim wood chips and the second generation of mathematical papyrus.

The Greeks used unit fractions and (post) continuous fractions. The Greek philosopher Pythagoras (about 530 BC) found that two square roots cannot be expressed as part of an integer. Usually this may be wrong, because hippasus of Metapontum is said to have been executed to reveal this fact.

Among 150 Indians in India, Jain mathematicians wrote "Sthananga Sutra", which includes number theory, arithmetic operation and operation.