1. Step-by-step reduction method: according to the characteristics of numerator and denominator in a given fraction, reduce gradually until the denominator of each fraction is a prime number, that is, the simplest fraction.
2. One-time simplification of the greatest common divisor: first, find the greatest common divisor of the denominator of the fraction, and directly convert the greatest common divisor into the simplest fraction.
3. Cleverly use the difference reduction method: first find the difference between the denominators of the points, and then use the difference or the factors contained in the difference to reduce the points.
For beginners, the gradual reduction method should be a more suitable method. Although the calculation is simple, the steps are a bit cumbersome. It is necessary to reduce the score from the common factor of the denominator until the numerator and denominator are prime numbers. In this process, it can help children better understand the connotation of contract and make it easier for children to understand what a contract is.
After mastering the gradual reduction method skillfully, the child also has a certain understanding of reduction. If children skillfully find the greatest common divisor, they can try one-step reduction, that is, numerator and denominator can remove their greatest common divisor at the same time.
The benefits of learning mathematics:
1. Mathematics can cultivate people's integrity and honesty. Mathematics pays the most attention to convincing people by reasoning, and only believes in the results of logical reasoning.
Mathematics can cultivate people's tenacity and courage. The great math educator Paulia said: "Difficulties and problems belong to the same concept. If there is no difficulty, there will be no problem.
3. Mathematics can cultivate people's overall consciousness. To solve mathematical problems, we must comprehensively consider the problems from the known to the conclusion and grasp the interrelationships of all aspects. Mathematics teaching can cultivate students to consider problems comprehensively from the overall situation.
Mathematics can cultivate people's good character. The better a person's math study, the more flexible his thinking. In this case, his enthusiasm and enthusiasm are very high, and he is good at expressing his ideas and methods, so that his communication skills will be tempered and his self-confidence will be gradually enhanced.