Fraction consists of numerator and denominator, where numerator represents the number of parts and denominator represents the number of whole or unit. A fraction is a rational number whose value is the result of dividing the numerator by the denominator.
Fraction has many important properties and applications in mathematics. The most basic property is the basic operation of fractions, including addition, subtraction, multiplication and division. When adding and subtracting fractions, you need to convert fractions into the same denominator, then add and subtract numerators, and finally simplify fractions. In the multiplication and division of fractions, numerator-numerator multiplication and denominator-denominator multiplication can be directly performed.
Besides basic operations, fractions have many important properties and applications. For example, scores can be used to solve some practical problems, such as distribution problems and proportion problems. In mathematics, fraction is also the basis of some concepts, such as fraction, general fraction, least common multiple and so on. In addition, scores are widely used in science, engineering and economics.
In real life, scores have many application scenarios. For example, in cooking, we often need to divide the ingredients into several equal parts, and then use the score to express the amount of each part. In architecture, we need to calculate the area of the wall or the area of the ground. At this time, we can also use fractions to express the size of each part.
The purpose of grading:
1, the application of fraction in mathematics education: in mathematics education, fraction is an important concept in primary school mathematics. By studying fractions, students can understand the relationship between the whole and the parts, and master the operation methods of addition, subtraction, multiplication and division of fractions. This is helpful to improve students' logical thinking ability and mathematical application ability.
2. Application of fractions in daily life: Fractions are often used in daily life. For example, in cooking, we often need to divide the ingredients into several equal parts, and then use the score to express the amount of each part. In architecture, we need to calculate the area of the wall or the area of the ground. At this time, we can also use fractions to express the size of each part. In addition, in scientific experiments and statistics, scores are often used to represent some data.
3. The application of scores in economics: In economics, scores also play an important role. For example, the stock price is usually expressed by opening price, closing price, highest price and lowest price, where the opening price and closing price are the prices at the beginning and end of trading in a day, while the highest price and lowest price are the highest and lowest prices of trading in a day. In addition, concepts related to scores such as proportion and percentage are often used in economics.