OML Search

Add and Subtract more than Two Fractions

Related Topics:
Lesson Plans and Worksheets for Grade 4
Lesson Plans and Worksheets for all Grades
More Lessons for Grade 4
Common Core For Grade 4



Examples, solutions, and videos to help Grade 4 students learn how add and subtract more than two fractions.

Common Core Standards: 4.NF.3a, 4.NF.3d, 4.NF.1, 4.MD.2

NYS Common Core Grade 4 Module 5, Lessons 18

Worksheets for Grade 4

Lesson 18 Concept Development

Solve each of the following in three different ways
Problem E:
5/8 + 4/8 + 1/8 =
Problem F:
1 1/5 - 2/5 - 3/5 = Lesson 18 Problem Set

1. Show one way to solve each problem. Express sums and differences as a mixed number when possible. Use number bonds when it helps you. Part (a) is partially completed.
a. 2/5 + 3/5 + 1/5
b. 3/6 + 1/6 + 3/6
c. 5/7 + 7/7 + 2/7
d. 7/8 - 3/8 - 1/8
e. 7/9 + 1/9 + 4/9
f. 4/10 + 11/10 + 5/10
g. 1 - 3/12 - 4/12
h. 1 2/3 - 1/3 - 1/3
i. 10/12 + 5/12 + 2/12 + 7/12

2. Monica and Stuart used different strategies to solve 5/8 + 2/8 + 5/8. Whose strategy do you like best? Why?

3. You gave one solution for each part of Problem 1. Now, for each problem indicated below, give a different solution method.
c. 5/7 + 7/7 + 2/7
f. 4/10 + 11/10 + 5/10
g. 1 - 3/12 - 4/12



Lesson 18 Homework

1. Show one way to solve each problem. Express sums and differences as a mixed number when possible. Use number bonds when it helps you. Part (a) is partially completed.
a. 2/5 + 3/5 + 1/5
b. 5/8 + 5/8 + 3/8
c. 4/6 + 6/6 + 1/6
d. 1 2/12 - 2/12 - 2/12
e. 5/7 + 1/7 + 4/7
f. 4/10 + 7/10 + 9/10
g. 1 - 3/12 - 4/12
h. 1 2/3 - 1/3 - 1/3
i. 10/12 + 5/12 + 2/12 + 7/12

2. Bonnie used different strategies to solve 5/8 + 2/8 + 5/8. Whose strategy do you like best? Why?

3. You gave one solution for each part of Problem 1. Now, for each problem indicated below, give a different solution method.
c. 5/7 + 7/7 + 2/7
f. 4/10 + 11/10 + 5/10
g. 1 - 3/12 - 4/12

Check out our most popular games!

Fraction Concoction Game:
Master fractions in the lab: mix, add, and subtract beakers to create the perfect concoction!

Fraction Concoction Game

Fact Family Game:
Complete fact families and master the link between addition & subtraction and multiplication & division.

Fact Family Game

Number Bond Garden:
Clear the board by matching number pairs that sum to ten in this garden-themed mental math puzzle.

Number Bond Garden

Online Addition Subtraction Game:
Practice your addition and subtraction skills to help the penguin find its mummy.

Online Addition Subtraction Game

Penguin Solitaire
Penguin Solitaire is a fun game that aims to move all cards to the foundations to build four full sequences. There are two versions here: Penguin (Tuxedo) and Penguin (Original).

Penguin Solitaire


OML Search


We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.