Answer:

IV. Perform the indicated operations. Express the answer in lowest term.

A. Addition

1. 1/3 + 1/3 = 2/3

2. 2/8 + 4/8 = 6/8 = 3/4

3. 6/7 + 1/7 = 7/7 = 1

4, 3/5 + 1/2 = 6/10 + 5/10 = 11/10 or 1 1/10

5. 5/9 + 1/3 = 5/9 + 3/9 = 8/9

B. Subtraction

1. 7/8 - 3/8 = 4/8 = 1/2

2. 4/5 - 1/5 = 3/5

3. 9/10 - 5/10 = 4/10 = 2/5

4. 5/8 - 1/2 = 5/8 - 4/8 = 1/8

5. 10/15 - 3/5 = 10/15 - 9/15 = 1/15

C. Multiplication

1. (3/4) (1/2) = 3/8

2. (5/6) (2/3) = 10/18 = 5/9

3. (10/15) (3/4) = (2/3) (3/4) = 6/12 = 1/2

5. (18/50) (25/36) = 1/4

D. Division

1. (3/4) ÷ (1/3) = 9/4 or 2 1/4

2. (6/8) ÷ (1/2) = 3/2 or 1 1/2

3. (10/12) ÷ (3/5) = 25/18 or 1 7/18

4. (14/15) ÷ (2/10) = 14/3 or 4 2/3

5. (9/12) ÷ (4/15)​ = 45/16 or 2 13/16