Common Percentage Conversions and Rewriting Methods

This section details the fundamental concepts of rewriting percents and provides a reference for common percentage conversions.

Definition: The percentage symbol (%) inherently means division by 100, while "of" indicates multiplication in percentage calculations.

Example: For calculating 30% of 50, rewrite as $30/100$ × 50.

Highlight: Common percentage conversions include:

• 25% equals 1/4 or 0.25
• 50% equals 1/2 or 0.5
• 75% equals 3/4 or 0.75
• 10% equals 1/10 or 0.1
• 20% equals 1/5 or 0.2
• 33.33% (repeating) equals 1/3 or 0.333...

Converting Between Percentages, Decimals, and Fractions

This page provides comprehensive instructions for converting between different numerical representations. The content focuses on how to convert percents to decimals and fractions through systematic approaches.

Definition: A percent represents a part of 100, indicated by the % symbol.

Example: To convert 36% to a decimal, divide by 100 to get 0.36.

Highlight: When converting decimals to percentages, multiply by 100 and move the decimal point two places right.

The page also covers the steps to find percent of a whole number through a two-step process:

1. Converting the percentage to decimal form
2. Multiplying the decimal by the whole number

Example: To find 20% of 80, first convert 20% to 0.20, then multiply by 80 to get 16.