More than 200 years ago, the mathematician Euler said in his book General Arithmetic that it is impossible to divide a 7-meter-long rope into three equal parts because there is no suitable number to represent it. If we divide it into three equal parts, each part is rice. Just like a new number, we call it a score. The name score shows the characteristics of this number intuitively and vividly.

Definition of fraction

Fraction is the need of measurement and mathematics itself-the need of division operation.

China was the first to use fractions.

China is the first country to use scores. There are many records about scores in ancient China. According to Zuo Zhuan, during the Spring and Autumn Period, the largest vassal city could not exceed Zhou, and the middle city could not exceed Xiao.

the nine chapters on the mathamatical art

Nine Chapters Arithmetic is a mathematical monograph written by China 1 0 more than 800 years ago. The first chapter, Square Domain, talks about four algorithms of fractions.