5th grade multiplying and dividing fractions

Quick answer

In 5th grade (ages 10–11), children learn that a fraction is division, multiply fractions and mixed numbers, and divide unit fractions and whole numbers. Start with Math Antics "Fractions Are Division", then Math with Mr. J lessons, Khan Academy examples and Numberock songs. Play all on repeat, or loop one example.

Play all on repeat

Videos in this playlist

  1. 1Math Antics - Fractions Are DivisionMath Antics - Fractions Are DivisionmathanticsPlay from here Loop
  2. 2Understanding fractions as division | Fractions | 5th grade | Khan AcademyUnderstanding fractions as division | Fractions | 5th grade | Khan AcademyKhan AcademyPlay from here Loop
  3. 3Using fractions as division to create mixed numbers | Fractions | 5th grade | Khan AcademyUsing fractions as division to create mixed numbers | Fractions | 5th grade | Khan AcademyKhan AcademyPlay from here Loop
  4. 4Math Antics - Multiplying FractionsMath Antics - Multiplying FractionsmathanticsPlay from here Loop
  5. 5Multiplication as Scaling | 5th Grade Math with Mr. JMultiplication as Scaling | 5th Grade Math with Mr. JMath with Mr. JPlay from here Loop
  6. 6How to Multiply a Whole Number by a Fraction | Multiplying Fractions | Math with Mr. JHow to Multiply a Whole Number by a Fraction | Multiplying Fractions | Math with Mr. JMath with Mr. JPlay from here Loop
  7. 7Multiplying Fractions by Whole Numbers | How to Multiply Fractions | 5th Grade MathMultiplying Fractions by Whole Numbers | How to Multiply Fractions | 5th Grade MathMath with Mr. JPlay from here Loop
  8. 8How to Find a Fraction of a Whole Number | Fractions of Whole NumbersHow to Find a Fraction of a Whole Number | Fractions of Whole NumbersMath with Mr. JPlay from here Loop
  9. 9Multiplying unit fractions and whole numbers | Fractions | Pre-Algebra | Khan AcademyMultiplying unit fractions and whole numbers | Fractions | Pre-Algebra | Khan AcademyKhan AcademyPlay from here Loop
  10. 10Multiplying Fractions | 5th Grade MathMultiplying Fractions | 5th Grade MathMath with Mr. JPlay from here Loop
  11. 11Multiplying Fractions by Fractions | How to Multiply Fractions | 5th Grade MathMultiplying Fractions by Fractions | How to Multiply Fractions | 5th Grade MathMath with Mr. JPlay from here Loop
  12. 12How to Multiply Two Fractions | Multiplying FractionsHow to Multiply Two Fractions | Multiplying FractionsMath with Mr. JPlay from here Loop
  13. 13Multiplying two fractions: example | Fractions | Pre-Algebra | Khan AcademyMultiplying two fractions: example | Fractions | Pre-Algebra | Khan AcademyKhan AcademyPlay from here Loop
  14. 14How to Multiply Fractions Using Cancellation | Math with Mr. JHow to Multiply Fractions Using Cancellation | Math with Mr. JMath with Mr. JPlay from here Loop
  15. 15Area of Rectangles with Mixed Number Side Lengths | Math with Mr. JArea of Rectangles with Mixed Number Side Lengths | Math with Mr. JMath with Mr. JPlay from here Loop
  16. 16How to Multiply a Mixed Number by a Fraction | Math with Mr. JHow to Multiply a Mixed Number by a Fraction | Math with Mr. JMath with Mr. JPlay from here Loop
  17. 17Multiplying Mixed Numbers: A Step-By-Step Review | How to Multiply Mixed Numbers | Math with Mr. JMultiplying Mixed Numbers: A Step-By-Step Review | How to Multiply Mixed Numbers | Math with Mr. JMath with Mr. JPlay from here Loop
  18. 18Multiplying Fractions | Fraction Word Problems | Math with Mr. JMultiplying Fractions | Fraction Word Problems | Math with Mr. JMath with Mr. JPlay from here Loop
  19. 19Multiplying Fractions (Mastery Check) | 5th Grade MathMultiplying Fractions (Mastery Check) | 5th Grade MathMath with Mr. JPlay from here Loop
  20. 20How to Divide Fractions by Whole Numbers | Lesson + PracticeHow to Divide Fractions by Whole Numbers | Lesson + PracticeMath with Mr. JPlay from here Loop
  21. 21How to Divide a Whole Number by a Fraction | Math with Mr. JHow to Divide a Whole Number by a Fraction | Math with Mr. JMath with Mr. JPlay from here Loop
  22. 22Why Do We Keep, Switch, Flip When Dividing Fractions? (aka Keep, Change, Flip) | Math with Mr. JWhy Do We Keep, Switch, Flip When Dividing Fractions? (aka Keep, Change, Flip) | Math with Mr. JMath with Mr. JPlay from here Loop
  23. 23Dividing Fractions | Fraction Word Problems | Math with Mr. JDividing Fractions | Fraction Word Problems | Math with Mr. JMath with Mr. JPlay from here Loop
  24. 24Multiplying Fractions Song | Math Rap VideoMultiplying Fractions Song | Math Rap VideoNumberockPlay from here Loop
  25. 25Multiplying Fractions with Whole Numbers SongMultiplying Fractions with Whole Numbers SongNumberockPlay from here Loop
  26. 26Multiplying Mixed Numbers Song | 5th GradeMultiplying Mixed Numbers Song | 5th GradeNumberockPlay from here Loop
  27. 27Dividing Whole Numbers by Fractions SongDividing Whole Numbers by Fractions SongNumberockPlay from here Loop
  28. 28Dividing Fractions by Whole Numbers SongDividing Fractions by Whole Numbers SongNumberockPlay from here Loop

What does this multiplying and dividing fractions unit cover?

It covers fractions as division, multiplying a fraction by a whole number or another fraction, multiplication as scaling, area with fractional sides, and dividing a unit fraction by a whole number or a whole number by a unit fraction. Dividing a fraction by a fraction comes in 6th grade.

How does RepeatWatch help with fraction multiplication?

Loop one worked example with A–B and let your child pause and copy it. Use 0.75× for the scaling and dividing videos, which take more thought. Save each part on keys 1–9, and put a Numberock song on Repeat one to remember the steps.

Frequently asked questions

What grade learns multiplying fractions?

In the US, children multiply a fraction by a whole number in 4th grade and multiply two fractions and divide unit fractions in 5th grade (ages 10–11). Full fraction division follows in 6th grade. Grade levels vary by country and school.

Why does multiplying by a fraction make a number smaller?

Multiplying by a fraction less than 1 means taking part of a number, so 1/2 × 8 is half of 8. Math with Mr. J's "Multiplication as Scaling" shows this with models. Loop that section until your child can explain it in their own words.