Question

Add or Subtract these fractions with unlike denominators by finding the Least Common Denominators and writing equivalent fractions to perform the operation.

1. 1/4 + 2/3 =

2. 5/8 + 3/16 =

3. 2/3 - 1/2 =

4. 5/7 - 1/3 =

Answer 1

1. 12

2. 16

3. 6

4. 21

Equivalent Fractions:

1.

1 1/2 = 36/24

3/8 = 9/24

5/6 = 20/24

3 = 72/24

2.

1/4 = 3/12

2/3 = 8/12

3.

5/8 = 10/16

3/16 = 3/16

4.

2/3 = 4/6

1/2 = 3/6