Equivalent fractions worksheets
Twelve missing-numerator problems — find what the numerator becomes when the denominator scales up.
Best fit: 3rd–4th grade · 8 sheets, answer keys included · Free, no sign-up
The full set: 8 worksheets with answer keys
Eight sheets in the same layout with different problems: download them as one PDF or print one at a time.
Worksheets
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Sheet 1
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Sheet 2
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Sheet 3
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Sheet 4
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Sheet 5
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Sheet 6
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Sheet 7
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Sheet 8
Answer keys
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Sheet 1 answers
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Sheet 2 answers
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Sheet 3 answers
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Sheet 4 answers
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Sheet 5 answers
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Sheet 6 answers
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Sheet 7 answers
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Sheet 8 answers
About these worksheets
Equivalent fractions are the multiplication tables of fraction work: 3/4 becomes 9/12 because both parts were multiplied by 3. Each problem here gives the original fraction and the new denominator; the child finds the multiplier, then the missing numerator. That two-step reasoning — “what times 4 makes 12?” — is the same skill later needed for common denominators. Pair with fraction strips to keep it visual.
Grade level: these worksheets are part of our 4th grade math worksheets collection.
Frequently asked questions
How do you find the missing numerator?
Ask what the denominator was multiplied by, then do the same to the numerator: 3/4 = ?/12 → 4×3 = 12, so 3×3 = 9.
Why does multiplying both parts keep the fraction equal?
You’re cutting every piece into smaller pieces — more pieces, smaller size, same total amount. Lay a strips or circles page alongside to show it.
Which fractions are used?
Each problem starts from a fraction with a denominator from 2 to 6 and multiplies it by 2, 3 or 4, so the new denominators run from 4 to 24. A few starting fractions, such as 2/6 or 3/6, are not in lowest terms; the method is the same.