Page 2: Percentages and Inverse Numbers

This page covers the relationship between percentages and fractions, along with the concept of inverse numbers and their role in division operations.

Definition: The inverse of a non-zero number is the number that, when multiplied by the original number, equals 1.

Example: 56% of 12 is calculated by converting 56% to 56/100 and multiplying by 12.

Highlight: Division by a fraction is equivalent to multiplication by its inverse, which is a fundamental principle in fraction operations.

Page 3: Addition and Subtraction of Fractions

This page focuses on the procedures for adding and subtracting fractions, emphasizing the importance of common denominators.

Highlight: When adding or subtracting fractions, denominators must be equal; if they're not, find a common denominator first.

Example: The page demonstrates addition and subtraction operations with fractions using step-by-step visual examples.

Vocabulary: Common denominator - a number that is divisible by all denominators in the problem.

Page 1: Basic Fraction Concepts and Multiplication

This page introduces fundamental fraction concepts and multiplication procedures. The content begins with a review of basic fraction principles before delving into multiplication operations.

Definition: A fraction consists of two parts - the numerator (above) and denominator (below), representing parts of a whole.

Highlight: Always simplify fractions before performing calculations to make operations easier and results clearer.

Example: The multiplication problem -15/14 × 24/-27 demonstrates the proper application of fraction multiplication rules.

Vocabulary:

• Dividende: The number being divided (numerator)
• Diviseur: The number dividing (denominator)