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