These 3rd grade fractions worksheets are generated rather than scanned, which means you can print a different sheet every day of the week without paying for a subscription or running out of practice. You will see items like 1/10 □ 1/2 (write >, < or =) and 5/7 = 20/□ on the printed page, with < and 28 waiting on the answer key so nobody has to redo the arithmetic.
‘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.
Every sheet is regenerated, so the child cannot recognise pairs from yesterday.
Comparing fractions is where children discover that a bigger denominator means smaller pieces. Deciding 1/10 □ 1/2 (write >, < or =) correctly — the answer is < — requires that idea, not just a look at the numbers.
Cross-multiplication is quick and opaque. If the child uses it on 7/10 □ 1/10 (write >, < or =), ask once why it works: both fractions are being put over the same denominator without anyone writing it down.
There are three reliable methods: common denominators, cross-multiplication, and comparison to a benchmark like one half. This sheet works with all three, and it is worth trying each on the same problem.
Teachers usually place 3rd grade fractions worksheets alongside the fraction comparison expectations for this grade, which is where the skill sits in the majority of US state frameworks.
| # | Problem | Answer | What to check |
|---|---|---|---|
| 1 | 1/10 □ 1/2 (write >, < or =) | < | Watch for: assuming a bigger denominator means a bigger fraction |
| 2 | 5/7 = 20/□ | 28 | Check: converting to decimals and rounding too early |
| 3 | 7/10 □ 1/10 (write >, < or =) | > | Look at: cross-multiplying in the wrong direction |
| 4 | 3/6 = 15/□ | 30 | Ask about: missing equal pairs |
| 5 | 2/3 □ 7/10 (write >, < or =) | < | Watch for: comparing by drawing every time |
| 6 | 1/2 = □/12 | 6 | Check: comparing numerators only |
A good first problem to do together is 1/10 □ 1/2 (write >, < or =), which comes out at <. Do 1/10 □ 1/2 (write >, < or =) once with the child narrating, then hand over the pencil and start the clock on the other 20 problems.
Work 3/6 = 15/□ out loud as a demonstration. It gives 30. Children who hear 3/6 = 15/□ reasoned through once at the start of a session make noticeably fewer errors in the ten minutes that follow.
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.
Answers appear next to their question numbers, so a wrong item like 5/7 = 20/□ can be found in the key in a second and re-worked while it is still fresh.
To save these 3rd grade fractions worksheets instead of printing them, choose 'Save as PDF' in the printer list. You get the worksheet and the answer key as a single PDF, on Letter or A4 depending on your printer settings.
Printing works the same on US Letter and A4, because the layout uses relative widths rather than fixed inches. Set margins to default and scaling to 100%, and all 20 problems fit.
When these become easy, move along the related links below rather than adding more problems to the same sheet.
→ Free 3rd 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