4th Grade Multiplying Fractions by Whole Numbers Worksheet
Multiply a fraction by a whole number by multiplying the numerator and keeping the denominator.
- Homework
- Review
- Test Prep
- Tutoring
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No sign-up required. Clean, low-ink US Letter format.
- Grade
- 4th Grade
- Subject
- Math
- Skill
- Fractions
- Topic
- multiplying a fraction by a whole number
- Difficulty
- Standard
- Time
- 15 minutes
- Pages
- 2 (incl. answer key)
- Format
- Printable PDF (US Letter)
- Answer key
- Included
- Best for
- homework, review, test prep, tutoring
Worksheet details
What This Worksheet Practices
Students will multiply a fraction by a whole number as repeated addition of the fraction.
- Seeing fraction times a whole as repeated addition
- Multiplying the numerator by the whole number
- Renaming improper fractions as mixed numbers
Worksheet Preview
A fraction added again and again
Multiplying a fraction by a whole number is just repeated addition: 3 × 1/4 means 1/4 + 1/4 + 1/4 = 3/4. So you multiply the numerator by the whole number and keep the denominator the same. The most common error is multiplying the bottom number too — but the size of the piece never changes.
How to use it
Have students rewrite the problem as repeated addition first, then shortcut to multiplying the numerator. Answers greater than 1 (like 6/5) can be written as mixed numbers (1 1/5). Builds on fraction of a number and leads to multiplying fractions in 5th grade.
👩🏫 Teacher note
3 x 1/4 means 1/4 + 1/4 + 1/4 = 3/4. Multiply only the numerator by the whole number; the denominator stays the same. Answers over 1 can be written as mixed numbers.
🏠 Parent note
Multiply the top number by the whole number. The bottom number stays the same.
Common Mistakes to Watch For
- Multiplying the denominator by the whole number too
- Forgetting to rename an improper-fraction answer
Answer Key
Each answer shows the product (as an improper fraction and/or mixed number).
⬇ Download Answer Key (PDF)Related Worksheets
Adding Fractions with Like Denominators Worksheet
Add fractions that share a denominator by adding the top numbers and keeping the bottom number the same.
Comparing Fractions Worksheet
Compare two fractions with <, >, or = — and learn to reason about the size of the pieces, not just the digits.
Equivalent Fractions Worksheet
Practice finding equivalent fractions by multiplying the numerator and denominator by the same number.
Fraction of a Number Worksheet
Find a fraction of a number by dividing by the denominator, then multiplying by the numerator.
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