Use pictures to show the meaning of fractions, decimals and percentages. Meaning of decimals: Fractions whose denominators are 10, 100 and 1000 can be expressed in decimals.
Percentage: a number that represents the fraction of one number to another, called percentage. Percentages are also called percentages or percentages. Percentages are usually not expressed in the form of fractions, but with a percent sign "%"after the molecule.
Fraction: Divide the unit 1 into several parts, which means that the numerator and denominator are all fractions in mathematics.