WorksheetsOperations of Fractions
Total questions: 20
Answer KeyOperations of Fractions
Total questions: 20
find a common denominator
Addition
, b)Subtraction
Rewrite the fractions with a common denominator.

20 questions
7th - 7th Grade
Mathematics
Operations of Fractions is a Grade 7 mathematics worksheet that builds fluency with adding and subtracting fractions, multiplying and dividing fractions, and simplifying answers to lowest terms. Students identify when common denominators are required, choose correct first steps, evaluate fraction expressions, detect an incorrect addition method, and apply fraction operations in everyday word problems. The 20-question set uses 14 multiple-choice questions, 5 fill-in-the-blank items, and 1 multiple-select question. It checks both procedural understanding and error analysis, including whether students can distinguish the denominator rules for addition and subtraction from those for multiplication and division. This free printable worksheet includes a complete answer key for independent practice, classwork, homework, or targeted review.
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Worksheets
Answer Keyfind a common denominator
Addition
, b)Subtraction
Rewrite the fractions with a common denominator.
This Grade 7 worksheet gives students practice adding and subtracting fractions with unlike denominators, multiplying and dividing fractions, and writing answers in lowest terms. Its 20 items include multiple-choice, fill-in-the-blank, and multiple-select questions that ask students to identify common-denominator steps, evaluate fraction expressions, recognize an invalid addition method, and solve fraction word problems.
Begin by modeling the decision students must make before calculating: addition and subtraction require a common denominator, while multiplication and division use different procedures. Work through one representative item by having students explain the first step, then use the worksheet’s error-analysis question and word problems to discuss why an answer is or is not valid before students complete the remaining fraction calculations.
Watch for students adding or subtracting numerators while leaving unlike denominators unchanged, since several items require rewriting fractions with a common denominator first. Students may also confuse the rules for addition and subtraction with multiplication and division, fail to simplify products or quotients to lowest terms, or select a numerically equivalent but unsimplified fraction.
Wayground provides this worksheet as a printable PDF and as a digital quiz, and it includes a complete answer key for all 20 questions. For printable submissions, scan student work with the Wayground for Teachers app to support grading and review.
Use the worksheet’s Advanced Settings to adjust font spacing and font size so the fraction expressions, answer choices, and fill-in-the-blank items are easier to read. You can also enable a dyslexia-friendly font or translate the worksheet into another language when that supports access to the fraction-operation directions and word problems.
Wayground offers a broad collection of free printable worksheets and practice problems across subjects, with downloadable PDFs and answer keys to help students master essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.