How to subtract fractions with unlike denominators

The video tutorial explains how to find a common denominator for fractions, focusing on the least common denominator. It provides a method to determine the least common denominator by listing multiples of the larger denominator. The tutorial also covers creating equivalent fractions by multiplying both the numerator and denominator by the same number. Finally, it demonstrates subtracting fractions with common denominators and checking if the result can be reduced.

What is the least common denominator of 5 and 8?

• 40

• 24

• 32

• 13

How do you create an equivalent fraction?

• Multiply only the numerator by a number

• Multiply only the denominator by a number

• Add the same number to both the numerator and the denominator

• Multiply both the numerator and the denominator by the same number

Why is it important to multiply both the numerator and the denominator by the same number?

• To change the value of the fraction

• To keep the fraction equivalent

• To make the fraction larger

• To make the fraction smaller

What should you do after obtaining fractions with a common denominator?

• Add the numerators and denominators

• Subtract the numerators and keep the denominator

• Multiply the fractions

• Cross-multiply the fractions

What is the final step after subtracting fractions with a common denominator?

• Check if the fraction can be simplified

• Divide the fraction by 2

• Multiply the fraction by 2

• Add 1 to the numerator