Worksheets for fraction addition
Create an unlimited supply of worksheets for adding fractions and mixed numbers (grades 47)! The worksheets can be made in html or PDF format — both are easy to print. You can also customize them using the generator below.
Addition of fractions is typically taught starting in 4th grade, with like fractions (same denominator, such as 3/8 + 2/8). Children start out by using manipulatives so they can understand the concept, and then they can go on to abstract problems.
Next, in 5th grade, students tackle adding unlike fractions (fractions with different denominators, such as 3/4 + 2/5) and mixed numbers with unlike fractional parts. The procedure for this involves converting the fractions to be added to equivalent fractions with a common denominator. After the conversion, you have like fractions (fractions with the same denominator) which you can add easily. To understand how this is done, please see this video on adding unlike fractions on my other site (MathMammoth.com)
In 6th and 7th grades, students simply practice addition of fractions using larger denominators and more complex problems.
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Basic instructions for the worksheets
Each worksheet is randomly generated and thus unique. The answer key is automatically generated and is placed on the second page of the file.
You can generate the worksheets either in html or PDF format — both are easy to print. To get the PDF worksheet, simply push the button titled "Create PDF" or "Make PDF worksheet". To get the worksheet in html format, push the button "View in browser" or "Make html worksheet". This has the advantage that you can save the worksheet directly from your browser (choose File → Save) and then edit it in Word or other word processing program.
Sometimes the generated worksheet is not exactly what you want. Just try again! To get a different worksheet using the same options:
 PDF format: come back to this page and push the button again.
 Html format: simply refresh the worksheet page in your browser window.
Fraction addition worksheets: grade 4
The fractions in grade 4 addition problems are limited to like fractions — fractions with a same denominator.
Add two fractions, same denominators, easy denominators of 2, 3, 4, 6, and 8 (the child can use a manipulative) View in browser Create PDF 
Add two fractions, same denominators View in browser Create PDF 
Add three fractions (same denominators) View in browser Create PDF 
Add two mixed numbers (same denominators) View in browser Create PDF 
Add a fraction with tenths and another with hundredths (such as 3/10 + 45/100) View in browser Create PDF 
Add three fractions with tenths and hundredths (such as 3/10 + 45/100 + 2/10) View in browser Create PDF 
Allow improper fractions (same denominators) View in browser Create PDF 
Add a fraction and a mixed number (easy) View in browser Create PDF 
Add fractions  missing number same denominators View in browser Create PDF 
Add fractions or mixed numbers  missing number  same denominators View in browser Create PDF 
Here are some more fraction worksheets you can use in grade 4. They also use only fractions with a same denominator (like fractions).
Add four fractions  same denominators (print in landscape) View in browser Create PDF 
Add four fractions, some are improper (print in landscape) View in browser Create PDF 
Add three fractions; missing number View in browser Create PDF 
Add two mixed numbers; missing number View in browser Create PDF 
Add three mixed numbers (same denominators) View in browser Create PDF 
Add mixed numbers, whole numbers, and fractions View in browser Create PDF 
Fraction addition worksheets: grade 5
In grade 5, students learn to add unlike fractions — fractions with different denominators.
Add two unlike fractions, easy denominators of 2, 3, 4, 6, and 12 (the student can use a manipulative) View in browser Create PDF 
Add two unlike fractions, denominators 212 View in browser Create PDF 
Add two unlike fractions, denominators 212, more workspace View in browser Create PDF 
Add two unlike fractions, denominators 212, more workspace yet View in browser Create PDF 
Add two mixed numbers, denominators 212 View in browser Create PDF 
Add two mixed numbers, denominators 212, more workspace View in browser Create PDF 
Add three fractions, denominators 212 View in browser Create PDF 
Challenge: a missing fraction View in browser Create PDF 
Here are some more fraction worksheets for grade 5.
Add two unlike fractions, allow improper fractions, denominators 212 View in browser Create PDF 
Add three fractions, allow improper fractions, denominators 212 View in browser Create PDF 
Add a mixed number and a fraction, denominators 212 View in browser Create PDF 
Add two mixed numbers and a fraction, denominators 212 View in browser Create PDF 
Challenge: add four fractions, mixed numbers, and whole numbers (print in landscape) View in browser Create PDF 
Challenge: a missing mixed number View in browser Create PDF 
Fraction addition worksheets: grades 67
In grades 6 and 7, students simply practice addition with fractions that have larger denominators than in grade 5.
Add two fractions, select (easier) denominators within 225 View in browser Create PDF 
Add three fractions, select (easier) denominators within 225 View in browser Create PDF 
Add two fractions, denominators 225 View in browser Create PDF 
Add two fractions, allow improper fractions, denominators 225 View in browser Create PDF 
Add two mixed numbers, select (easier) denominators within 225 View in browser Create PDF 
Add three mixed numbers, select (easier) denominators within 225 View in browser Create PDF 
Add two mixed numbers, denominators 225 View in browser Create PDF 
Challenge: a missing fraction, denominators 225 View in browser Create PDF 
Add four fractions, select (easier) denominators within 225 View in browser Create PDF 
Add four fractions and/or mixed numbers, select (easier) denominators within 225 (print in landscape) View in browser Create PDF 
Add 3 fractions and mixed numbers, missing number (print in landscape) View in browser Create PDF 
Add four fractions, missing fraction (print in landscape) View in browser Create PDF 
Fraction worksheets generator
Use the generator to make customized worksheets for fraction operations.
Fraction worksheets generator
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How many numbers to use in the problem? (Number 3 follows the settings for value 1, and number 4 follows the settings for value 2.) Extra vertical space below the problems: lines  
Page orientation: Portrait Landscape (PDF worksheet only) Font: Font Size: Cell Padding: Border: Bordercolor:  
