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Free 5th Grade Subtracting Fractions Worksheets (unlike denominators)

If you need 5th grade subtracting fractions worksheets that you can print right now, this page builds them for you — 20 fresh problems, an answer key underneath, and no account to create first. A typical problem from the sheet in front of you is 2/4 − 1/7, which works out to 5/14; another is 3/6 − 2/5, giving 1/10.

📄 5TH GRADE SUBTRACTING FRACTIONS WORKSHEETS — A NEW SHEET EVERY TIME YOU PRESS THE BUTTON
🎲 New set of problems

‘New set of problems’ opens the generator in its own tab. There you can change the problem count and turn the answer key on or off. ‘Print or save as PDF’ opens the print dialog — choose Save as PDF in the printer list to keep the file. The sheet fits US Letter and A4, and the answer key prints on its own page.

What is on the sheet

The common denominator does not have to be the lowest one. Multiplying the two denominators always works, and with unlike denominators from 2 to 9 the extra simplification at the end is a small price for a method that never fails, which is why a line such as 4/6 − 1/7 turns up.

Every step is visible on the page: rewrite, add, simplify. Children who try to do the rewriting in their heads make far more errors than those who write both new fractions down.

Checking is possible by estimation: each fraction is roughly a half, a bit more or a bit less, and the answer to 3/6 − 2/5 should be in the neighbourhood the estimate suggests.

The generator produces unlike pairs every time, including pairs where one denominator is a multiple of the other — worth spotting in 4/8 − 1/7, because it halves the work.

Teachers usually place 5th grade subtracting fractions worksheets alongside the fractions strand for grade 5, which is where the skill sits in the majority of US state frameworks.

Sample problems from the current sheet

These six come from the sheet loaded on this page. Press the button and the numbers change, but the shape stays the same (unlike denominators from 2 to 9).
#ProblemAnswerWhat to check
12/4 − 1/7 =5/14Watch for: multiplying only one fraction up
23/6 − 2/5 =1/10Check: finding a common denominator but forgetting the numerators
34/8 − 1/7 =5/14Look at: using the product when a much smaller common denominator exists
44/5 − 3/7 =13/35Ask about: adding numerators and denominators straight across
54/6 − 1/7 =11/21Watch for: stopping before simplifying
61/2 − 2/8 =1/4Check: subtracting the larger numerator from the smaller after conversion

Try one together first

Take the first problem on the sheet as it stands, 2/4 − 1/7. Work 2/4 − 1/7 out on paper rather than in your head the first few times, say each step aloud, and check the result against 5/14 on the key before moving on.

The item 3/6 − 2/5 is worth doing slowly. The answer to 3/6 − 2/5 is 1/10, and the route to it is the route every other problem on this sheet takes — which is why the sheet has 20 of them rather than one.

The three errors worth watching for

How to run this as a 12-minute daily drill

  1. Stop the session at the time limit even if the sheet is unfinished, and note where the child got to. A half sheet done well is better data than a whole sheet rushed.
  2. Use a pencil, not a pen. Children working on subtracting fractions rethink far more often when erasing is allowed, and you get to see exactly where the rethinking happened on an item like 4/8 − 1/7.
  3. Re-print the same skill rather than the same sheet. Because the numbers change, a child who memorised that 2/4 − 1/7 gives 5/14 still has to actually calculate tomorrow.
  4. Read the first two problems out loud together before starting the clock. It costs fifteen seconds and removes most of the 'I did not understand the question' errors.
  5. Write the finish time and the score at the top of every sheet. Two weeks of those two numbers tells you more about progress on subtracting fractions than any single test result.

The answer key

Keys are produced by the same code that produces the questions, so a mismatch between question and answer is not possible on these sheets.

Every generated sheet carries its own key on a separate printed page, which lets a child self-mark without seeing the answers while they work.

Printing and saving as PDF

If the problems look cramped, drop the count from 20 to a smaller number before printing these 5th grade subtracting fractions worksheets; the font stays the same size and the spacing opens up.

For a class set, print one sheet, press the new-worksheet button and print again. Each child gets different numbers on the same skill, so nobody can copy the answer to 2/4 − 1/7 from a neighbour.

Frequently asked questions

How many different sheets can I make?
As many as you want. The numbers are randomised each time, so printing five sheets in a row gives five different sets of 20 problems on the same skill.
Can I change how many problems are on the page?
Yes — the generator takes 10, 20 or 30 problems. Twenty is the default because it fits one page and suits a 12-minute drill.
Does the common denominator have to be the lowest?
No. Any common denominator gives a correct answer; the lowest one just keeps the numbers small. Multiplying the denominators together is the reliable fallback.
How long does this topic take?
Most children need three to four weeks of short daily sessions before unlike denominators stop feeling like a multi-step ordeal.

One sheet of 5th grade subtracting fractions worksheets a day for two weeks will tell you more about where a 5th grader actually stands than any single long assessment.

More worksheets like this

→ Free 5th Grade Math Worksheets  ·  → Free Fractions Worksheets

Free printable math worksheets from a working math academy director in Korea. Problems come from our own code, not from a published workbook. Every sheet prints on US Letter or A4 with its answer key. All worksheets · Worksheet generator · Korean site
Last updated: 2026-09-13