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KS3
Years 7–9
Free
Number
Fractions

Adding & Subtracting Fractions — Free KS3 Worksheet

A free KS3 practice worksheet on adding and subtracting fractions with different denominators. 16 questions graded easy to hard, with a full worked answer key. Print-ready A4 PDF.

A free practice worksheet to go with the Adding & Subtracting Fractions lesson. Print it, work through it, and check every answer.

What's covered

Adding and subtracting fractions with the same and different denominators, finding a common denominator, simplifying answers, and a few mixed-number and word problems at the end to stretch confident students.

What's included

  • 16 questions, graded from easy to hard, with stretch questions at the end
  • Space to write your working under every question
  • A full answer key that shows the working — the common-denominator step, then the simplified answer — so you can mark it together

One print-ready A4 PDF. No sign-up needed.