Subtracting Unlike Fractions

This video tutorial provides a step-by-step guide on how to subtract fractions with different denominators. It begins with identifying the need for a common denominator, followed by finding it through listing multiples. The tutorial then explains how to rename fractions using the common denominator, perform the subtraction by subtracting numerators, and finally, simplify the resulting fraction if necessary. The video is designed to be a refresher for learners of all ages and educational levels.

What is the first step to subtract fractions with different denominators?

How do you find a common denominator for the fractions 3/5 and 1/4?

Explain how to rename the fraction 3/5 to have a common denominator of 20.

What is the result of subtracting the fractions 12/20 and 5/20?

When is a fraction considered to be simplified?