KS2 Primary Maths Age 13-17 - Fractions, Decimals and Percentages: Adding and Subtracting Fractions - Explained

The video tutorial explains how to add and subtract fractions by first finding a common denominator. It introduces the concept of the lowest common denominator (LCD) and demonstrates how to convert fractions to have the same denominator. The tutorial then shows how to add fractions by summing their numerators once they share a common denominator, providing a step-by-step example to illustrate the process.

What must be the same when adding or subtracting fractions?

What does LCD stand for in the context of fractions?

How do you find the lowest common denominator for the fractions 1/4, 1/5, and 1/10?

What is the equivalent fraction of 1/4 when converted to twentieths?

What is the final answer when adding the fractions 5/20, 4/20, and 2/20?