Fractions with different denominators are added: when fractions with different denominators are added, they are divided into general fractions, then the fractions with the same denominator are added and calculated, and finally converted into simplest fraction.
Subtract denominator score:
1. Subtract the denominator, the denominator remains the same, the numerator is subtracted, and finally it will be converted into the simplest fraction.
2. Subtraction of fractions with different denominators: Subtract fractions with different denominators, divide them first, then subtract fractions with the same denominator, and finally convert them into simplest fraction.
Fraction indicates the fraction of one number to another, or the ratio of one event to all events. Divide the unit "1" into several parts on average, and the number representing such a part or parts is called a fraction. The numerator is above and the denominator is below.
Extended data:
The numerator is above and the denominator is below. It can also be seen as division, where the numerator is divided by the denominator (because 0 cannot be divided in division, the denominator cannot be 0). On the contrary, division can also be expressed by fractions.
The difference between percentage and score:
1, which has different meanings, and the percentage only indicates the double ratio relationship between two numbers, and can't bring the company name; The score can represent a specific number or the relationship between two numbers, and the specific number can be represented by the company name.
2. Percentages cannot be reduced, but scores are usually divided into the simplest scores by reduction.
3. Any percentage can be written as a fraction with a denominator of 100, and a fraction with a denominator of 100 does not always have the meaning of percentage.
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