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

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

5. Convert fractions into percentages: usually, first convert fractions into decimals (three decimal places are usually reserved when they are not used up), and then convert decimals into percentages.

6. Decimal percentage: First, rewrite the percentage into a component number and make a quotation that can be converted into the simplest fraction.