Finding Least Common Denominators and Simplifying Fractions

This video tutorial covers practice set number 26, focusing on adding and subtracting fractions. It begins with basic operations involving common denominators and progresses to more complex problems requiring the calculation of the least common denominator (LCD). The tutorial also addresses the addition of multiple fractions and advanced problems involving various operations. Each problem is solved step-by-step, emphasizing the importance of simplifying fractions to their lowest terms.

What is the result of adding 1/9 and 4/9?

• 9/9

• 1/9

• 5/9

• 4/9

How do you simplify the fraction 6/14?

• 3/7

• 1/2

• 6/7

• 2/7

What is the least common denominator (LCD) of 11 and 22?

• 11

• 44

• 22

• 33

What is the result of subtracting 3/22 from 5/11 after finding a common denominator?

• 5/22

• 1/22

• 2/11

• 7/22

What is the least common denominator (LCD) of 5, 12, and 15?

• 30

• 75

• 45

• 60

What is the result of adding -3/5, 5/12, and 4/15 after finding a common denominator?

• 1/12

• 7/60

• 11/60

• 5/60

What is the least common denominator (LCD) of 8, 10, 5, and 12?

• 60

• 80

• 120

• 100

What is the result of the operation 1/8 + 3/10 + 2/5 - 1/12 after finding a common denominator?

• 89/120

• 109/120

• 79/120

• 99/120

What is the least common denominator (LCD) of 18 and 27?

• 81

• 36

• 54

• 72

What is the result of the operation -3/8 + 5/27 after finding a common denominator?

• 3/54

• 2/54

• 4/54

• 1/54