4th grade equivalent fraction concepts worksheets

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Equivalent fraction concepts worksheets for 4th grade print 6 problems per page. Complete each problem. Use the models and show your reasoning where asked. Equivalent fractions name the same amount of the same whole. Multiply or divide numerator and denominator by the same positive whole-number factor.

Free printable PDF worksheet, aligned to Common Core 4.NF.A.1.

Each print is a different sheet with its own answer key. You don't need to sign up.

The kind of problems you'll get

Complete each problem. Use the models and show your reasoning where asked.

  1. Explain this equivalence. 2/5 = 6/15

    Answer: Equal-length bars: 2/5 = 6/15

  2. Explain this equivalence. 1/2 = 2/4

    Answer: Equal-length bars: 1/2 = 2/4

  3. Explain this equivalence. 2/3 = 4/6

    Answer: Equal-length bars: 2/3 = 4/6

Every print pulls a fresh set of problems at this level, so a make-up test or a second sibling never gets the same sheet.

What's on each sheet

Every version prints on US Letter or A4, with its answer key after the problems.

This sheet is one of the versions on the 4th grade equivalent fractions page, with its own difficulty choices and its own answer key.

How to teach this

Ask "what did the bottom get multiplied by?" before anything else, and have your child write that little × 4 next to the equals sign so the step stays visible. Check a finished answer by simplifying it back: 12/20 should return to 3/5. If your child is guessing, cover the second denominator and let them build the new fraction themselves.

Watch for: Kids add the same number to the top and bottom, turning 1/2 into 2/3. Adding changes the fraction's size; only multiplying both parts keeps it. Kids multiply the bottom and copy the top across unchanged. Whatever the denominator was multiplied by, the numerator gets the same.

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Aligned to Common Core 4.NF.A.1. Reviewed by the One more sheet team. Content version 241, updated September 2026.

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