Adding and Subtracting Fractions - Step-by-step solution and examples

Sep 15, 2026

Uploaded by Ivy

Instructional walkthrough for adding and subtracting fractions using a common denominator. Covers the rule that denominators must match, then demonstrates how to find a common denominator by listing multiples, transforming both numerators and denominators, and carrying out the arithmetic. Includes a worked addition example and a subtraction example, explains when more multiples are needed, and finishes with guidance to simplify the resulting fraction when possible.

LanguageEnglish

CategoryExam

FormatPDF

Pages1

Reading Time3 min

AccessFree to download

Adding fractions

Common denominator method

Subtracting fractions

Match denominators and simplify

FAQs

What is the key rule for adding or subtracting fractions?

The denominators must be the same. You achieve this by converting the fractions to a common denominator before adding or subtracting the numerators.

How do you find a common denominator?

List multiples of each denominator and identify a value that is shared by both. Use that common value as the new denominator for every fraction in the operation.

When should the final fraction be simplified?

After adding or subtracting, simplify the result by dividing both the numerator and denominator by a common factor if possible.

Sep 15, 2026

Uploaded by Ivy