Can't draw a picture of a mathematical manuscript? I don't know what to write. It doesn't matter. The following are the pictures and information about the scores I brought to you. I hope you like them.

Picture Appreciation of Mathematical Manuscript 1 Figure 2

Figure 3 Data 1: Knowledge about the score 1 Significance of the score

Divide the unit "1" into several parts on average, and the number representing such a part or parts is called a fraction.

In the score, the middle horizontal line is called the dividing line; The number below the fractional line is called the denominator, indicating how many copies the unit "1" is divided into on average; The number below the fractional line is called the numerator, indicating how many copies there are.

Divide the unit "1" into several parts on average, and the number representing one part is called fractional unit.

2 Classification of scores

True fraction: The fraction with numerator less than denominator is called true fraction. The true score is less than 1.

False fraction: Fractions with numerator greater than denominator or numerator equal to denominator are called false fractions. False score is greater than or equal to 1.

With fraction: False fraction can be written as a number consisting of integer and true fraction, which is usually called with fraction.

3 Reduction and comprehensive score

Changing a fraction into a fraction equal to it, but with smaller numerator and denominator, is called divisor.

The denominator of a molecule is a fraction of a prime number, which is called simplest fraction.

Dividing the scores of different denominators by the scores of the same denominator equals the original score, which is called the total score.

per cent

1 indicates that one number is the percentage of another number, which is called percentage, also called percentage or percentage. Percentages are usually expressed as "%". The percent sign is a symbol indicating percentage.

Data 2: Rewriting scores and appreciating interactive pictures.

Rewrite score

1. How to read fractions: When reading fractions, read the denominator first, then the numerator, and both numerator and denominator read integers.

2. How to write the fraction: write the fraction first, then the denominator, and finally the numerator and the integer.

3. Reading method of percentage: When reading percentage, read the percentage first, and then read the number before the percentage symbol. When reading, read it as an integer.

4. How to write the percentage: The percentage is usually expressed by adding a percent sign "%"after the original molecule instead of a fraction.

Mutualization of fractions

1. Decimal component number: There are several decimals, so writing a few zeros after 1 as denominator and removing the decimal point after the original decimal point as numerator can reduce the number of quotation points.

2. Fractions become decimals: numerator divided by denominator. Those that are divisible are converted into finite decimals, and some that are not divisible are converted into finite decimals. Generally three decimal places are reserved.

3. A simplest fraction, if the denominator does not contain other prime factors except 2 and 5, this fraction can be reduced to a finite decimal; If the denominator contains prime factors other than 2 and 5, this fraction cannot be reduced to a finite decimal.

4. Decimal percentage: Just move the decimal point to the right by two places, followed by hundreds of semicolons.

5. Decimal percentage: Decimal percentage, just remove the percent sign and move the decimal point two places to the left.

6. Fractions become percentages: Usually, fractions are divided into decimals first. When they are not used up, they usually keep three decimal places and then convert them into percentages.

7. Decimalization of percentage: First, rewrite percentage into component quantity and put forward a quotation that can be simplified to the simplest score.

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