1. Determine the score to be scored: determine two or more scores to be scored.

2. Find their least common multiple (LCM): Find the least common multiple of the denominator of these fractions, and this number will become the denominator after sharing.

3. Multiply the fractions separately: multiply the numerator and denominator of each fraction by an appropriate number to make the denominator the least common multiple.

4. Simplify the fraction (optional): If necessary, you can divide the fraction after the general division, that is, the common factor of the numerator and denominator can be reduced.

First, the total score

According to the basic properties of fractions, the process of changing several fractions with different denominators into fractions with the same denominator equal to the original fraction is called general fraction.

Second, the main points

1, which respectively lists the divisors of each denominator; Multiply the denominator divisor, and if there is a common divisor, the result is the least common multiple of the denominator.

2, where there are letters or factors containing letters, should take the power factor as the base; The power of a factor with the same letter or a factor containing letters is the largest exponent; Multiply all the above formulas to get the simplest common denominator.

Third, the basis

Both general and approximate fractions are based on the basic properties of fractions (formulas): the numerator and denominator of fractions (formulas) are multiplied or divided by a number (formulas) that is not equal to zero, and the size of fractions (formulas) remains unchanged. The denominator remains the same, and the denominator on the other side is cross-multiplied.

Expanding knowledge-mathematics

1, mathematics [English: Mathematics, from ancient Greece μ? θξμα(máthēma)； Often abbreviated as math or maths], it is a discipline that studies concepts such as quantity, structure, change, space and information.

2. Mathematics is a universal means for human beings to strictly describe and deduce abstract structures and patterns of things, and can be applied to any problems in the real world. All mathematical objects are artificially defined in essence.

In this sense, mathematics belongs to formal science, not natural science. Different mathematicians and philosophers have a series of views on the exact scope and definition of mathematics.

Mathematics plays an irreplaceable role in the development of human history and social life, and it is also an indispensable basic tool for studying and studying modern science and technology.