Fractional multiplication formula
Fractions are multiplied by fractions, the product of numerator multiplication is numerator, and the product of denominator multiplication is denominator. Provide reducible (simplified) (simplified) points. The formula of multiplying the score by the score is a/b×c/d=ac/bd.
Definition of fractional multiplication and division
Fractional multiplication refers to the numerator of a fraction multiplied by the numerator and the denominator multiplied by the denominator. What can be subtracted must be subtracted first, and the numerator cannot be multiplied by the denominator. When doing the first step, we should think about whether the numerator of one number and the denominator of another number can be reduced. Fractional division (except 0) is the calculation method of multiplying the dividend by the reciprocal of the divisor to get the result. Fractional multiplication and division is calculated by multiplication and division and reciprocal. Fractional multiplication and division requires the provision of points that can be reduced (simplified).
Fractional algorithm
1, addition and subtraction of fractions: add and subtract fractions with denominator, only add and subtract numerators, and the denominator remains unchanged. Fractions of different denominators are added and subtracted, first divided, then added and subtracted.
2. The law of fractional multiplication by integer: take the product of fractional numerator multiplied by integer as numerator, and the denominator remains unchanged.
3. Fractional rule: use the product of molecular multiplication as the numerator and the product of denominator multiplication as the denominator.
4. Dividing the score by an integer (except 0) is equal to multiplying the score by the reciprocal of this integer.
5. A number divided by a fraction is equal to the number multiplied by the reciprocal of the fraction.
6. At the end of the score calculation, the score must be converted into the simplest score.
7. The basic nature of the fraction: the numerator and denominator of the fraction are multiplied or divided by the same number at the same time (except 0), and the size of the fraction remains unchanged.
By simplifying the score, the complexity of calculation can be reduced and more concise results can be obtained. To sum up, fractional multiplication and its application formulas are commonly used in mathematics. Through these formulas, we can calculate fractional multiplication quickly and accurately, and apply it to solve various problems in real life.
At the same time, the calculation process can be simplified by simplifying the score, which makes the result more concise. Mastering these application formulas can better understand and apply fractional multiplication.