Understanding Fraction Subtraction

The video tutorial explains how to subtract fractions with different denominators by first finding the least common denominator. It demonstrates adjusting fractions to have the same denominator, performing the subtraction, and then simplifying the result using the greatest common factor.

Why is it necessary to have the same denominator when subtracting fractions?

• To make the numerators equal

• To ensure the fractions are comparable

• To make the fractions improper

• To simplify the fractions

What is the least common denominator for the fractions 6 and 12?

• 6

• 18

• 24

• 12

How do you adjust a fraction to have a new denominator?

• Add the same number to both the numerator and denominator

• Multiply both the numerator and denominator by the same number

• Subtract the same number from both the numerator and denominator

• Divide both the numerator and denominator by the same number

What is the result of subtracting 10/12 from 8/12?

• 1/6

• 1/12

• 2/6

• 2/12

When can a fraction be turned into a mixed number?

• When the fraction is already simplified

• When the numerator is larger than the denominator

• When the denominator is a prime number

• When the numerator is smaller than the denominator

What is the greatest common factor (GCF) of 2 and 12?

• 1

• 6

• 2

• 4

What is the simplified form of 2/12?

• 1/12

• 2/6

• 1/2

• 1/6

What is the final answer after simplifying the fraction 2/12?

• 1/6

• 2/6

• 2/12

• 1/12

Why is it important to simplify fractions?

• To increase the numerator

• To decrease the denominator

• To make the fraction improper

• To make calculations easier

What should you do if the numerator is larger than the denominator after subtraction?

• Add the numerator to the denominator

• Multiply the numerator by 2

• Leave it as it is

• Convert it to a mixed number