Grade 6 Adding Fractions With Unlike Denominators Worksheets
Start with eight focused practice problems, then use the answer key below to check the worksheet.
Practice Worksheet
Grade 6 Adding Fractions With Unlike Denominators Practice
Solve each problem. Show your work.
- 1.1/3 + 1/4 = ___
- 2.1/2 + 7/8 = ___
- 3.1/2 + 5/8 = ___
- 4.1/2 + 2/4 = ___
- 5.1/3 + 4/6 = ___
- 6.1/6 + 10/12 = ___
- 7.2/3 + 1/5 = ___
- 8.3/6 + 5/12 = ___
Show answer key
- Question 1: 7/12
- Question 2: 11/8
- Question 3: 9/8
- Question 4: 1/1
- Question 5: 1/1
- Question 6: 1/1
- Question 7: 13/15
- Question 8: 11/12
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About These Worksheets
Grade 6 students build full fluency adding unlike-denominator fractions, including mixed numbers and multi-step problems.
These worksheets for adding fractions with unlike denominators guide students through one of the more challenging skills in elementary fraction work: combining fractions like 1/3 and 1/4, which first require finding a common denominator before the numerators can be added. Students practise identifying the least common multiple of the two denominators, converting each fraction to an equivalent fraction with that common denominator, and then adding as usual.
Problems progress from pairs with an easy common denominator (such as 1/2 and 1/4) to pairs requiring the least common multiple of two larger numbers. Worksheets also include simplifying the final answer and converting improper fractions to mixed numbers where needed. This skill draws directly on equivalent fractions and multiples, so students with strong foundations in those areas typically find this step much more manageable.
Skills Practised
- Finding the least common multiple of two denominators
- Converting fractions to equivalent fractions with a common denominator
- Adding the numerators once denominators match
- Simplifying sums to lowest terms
- Converting improper fraction sums into mixed numbers
- Solving word problems involving unlike-denominator addition
Parent Tip: Review the times tables for the two denominators together first — finding a common denominator is really just finding a shared multiple, so multiplication fluency makes this step much faster.