Adding and Subtracting Fractions with Denominators

How do you find the common denominator when adding fractions with unlike denominators?

• By multiplying the denominators together

• By finding the greatest common factor

• By finding the least common multiple

• By adding the denominators together

The bottom number of a fraction is called the ______________

• 4/5
• 4/10
• 2/5
• 5

What is the difference in the following equation in lowest terms:
18/36 - 9/36 =

• 10/36

• 1/4

• 2/3

• 12/36

What is the sum of the following equation in lowest terms:
2/12 + 3/12 =

• 1/2

• 5/12

• 6/12

• 5/24

What is the difference in the following equation in lowest terms:
9/10 - 3/10 =

• 4/10

• 3/5

• 6/10

• 2/3

What is the sum of the following equation in lowest terms:
9/12 + 3/12 =

• 10/12

• 1

• 12/12

• 6/12

Solve and SIMPLIFY:

2/8 + 4/8

• 3/4

• 6/8

• 6/16

• 3/8

Solve and SIMPLIFY:

3/5 + 2/5

• 1

• 5/5

• 5/10

• 0

Solve and SIMPLIFY:

10/8 - 2/8

• 8/8

• 1

• 12/8

• 4/8