Adding & subtracting fractions worksheets with answer keys

Adding and subtracting fractions, including unlike denominators that need a common one. Grades 4-7. Every sheet prints with a matching answer key, and every sheet is generated fresh — so you can hand out a different one each time without writing it yourself.

Generate a adding & subtracting fractions worksheet →

What the problems look like

Three real examples at each difficulty, with answers.

Easy

• 2/3 + 3/4 = → 17/12
• 1/4 + 1/2 = → 3/4
• 1/3 + 1/4 = → 7/12

Generate a full easy adding & subtracting fractions worksheet →

Medium

• 7/8 − 3/5 = → 11/40
• 3/4 − 1/4 = → 1/2
• 1/3 − 2/3 = → -1/3

Generate a full medium adding & subtracting fractions worksheet →

Hard

• 5/7 + 1/2 = → 17/14
• 1/6 − 1/3 = → -1/6
• 5/12 + 4/7 = → 83/84

Generate a full hard adding & subtracting fractions worksheet →

How to use it

• Pick a difficulty above and hit generate — you get 20 problems instantly.
• Toggle the answer key on or off before you print.
• Hit “New problems” for a completely different sheet on the same skill.
• Every sheet has a permanent link, so you can reprint the exact same one next year.
• No signup, no ads on the printout. Pro ($19) raises the cap to 60 problems and prints A–F differentiated versions in one go.

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