Subtracting Fractions

This video tutorial explains how to subtract fractions with both like and unlike denominators. It begins with a simple example of subtracting fractions with the same denominator, emphasizing that the denominator remains unchanged. The tutorial then progresses to subtracting fractions with different denominators, demonstrating how to find a common denominator by multiplying the denominators of the fractions. The process of converting fractions to equivalent fractions with the common denominator is shown, followed by the subtraction of the numerators. The lesson concludes with a summary of the key steps involved in subtracting fractions with unlike denominators.

What is the result of subtracting 1/4 from 3/4?

• 3/4

• 1/4

• 2/4

• 1/2

Why do we need a common denominator when subtracting fractions with unlike denominators?

• To make the numerators equal

• To ensure the fractions represent parts of the same whole

• To change the fractions to improper fractions

• To simplify the fractions

What is the common denominator for 1/2 and 2/7?

• 14

• 2

• 7

• 28

After converting 1/2 to have a denominator of 14, what is the equivalent fraction?

• 2/14

• 7/14

• 14/14

• 1/14

What is the result of subtracting 2/7 from 1/2 after finding a common denominator?

• 3/14

• 5/14

• 1/14

• 9/14