Addition and Subtraction of Similar and Dissimilar Fractions

Question 1

What must you have to add and subtract fractions?

Answer 1

Common denominators

Question 2

2/5 + 3/10

Answer 2

7/10

Question 3

8/9 - 1/3 =

Answer 3

5/9

Question 4

2/3 + 1/2 =

Answer 4

7/6

Question 5

1/3 + 5/12

Answer 5

3/4

Question 6

Subtract 9/20 - 1/4. Write the difference in simplest form.

Answer 6

1/5

Question 7

3/5 + 7/10

Answer 7

13/10

Question 8

1/4 + 5/8

Answer 8

7/8

Question 9

7/10 - 1/2 = _____
in simplest form

Answer 9

1/5

Question 10

Tim did 1/12 of a load of laundry on Sunday and 1/4 of a load of laundry on Saturday. What fraction of laundry did Tim do in total?

Answer 10

1/3 loads done

Question 11

Sally is painting her house. She used 1/8 of a gallon of paint in her bathroom, and 2/6 of a gallon of paint in her bedroom. How much paint did she use in all?

Answer 11

11/24

Question 12

Tim has a board that is 5/6 feet long. He painted 2/18 feet of his board last night. How much more does Tim have left to paint?

Answer 12

13/18

Question 13

2 1/4 + 3 2/12

Answer 13

5 5/12

Question 14

Monique wants to bake a cake. She needs 2 1/8 cups of sugar, and 1 5/24 cups of flour. How many cups of ingredients will she use in all?

Answer 14

3 8/24 cups