Common Denominator Algebra

What is the least common denominator of 1/2 and 3/7?

• 2

• 14

• 7

• 28

What is the least common denominator of 1/9 and 2/3?

• 6

• 3

• 9

• 21

What is the least common denominator of 3/5 and 5/7?

• 35

• 25

• 7

• 30

What is the least common denominator of 2/4 and 4/7?

• 24

• 7

• 42

• 28

What is the least common denominator of 1/4 and 1/3?

• 4

• 3

• 12

• 8

What is the least common denominator of 1/4 and 2/5?

• 5

• 25

• 10

• 20

What is the least common denominator of 2/6 and 7/8?

• 36

• 8

• 18

• 24

What is the least common denominator of 1/7 and 3/6?

• 14

• 21

• 7

• 42

Select all operations with fractions that require a common denominator.

• addition

• division

• multiplication

• subtraction

What is the process for adding algebraic fractions?

• Find the least common multiple of the denominators and add the numerators

• Subtract the numerators and simplify the resulting fraction

• Find a common denominator, add the numerators, and simplify the resulting fraction if possible.

• Multiply the denominators and add the numerators