Continue your child’s math learning
Sign up for a FREE Splash Math account.
Signup with Email
Why parents choose Splash Math for their fourth graders?
Intelligently adapts to the way each child learns
Get coins for each correct answer and redeem coins for virtual pets
Monitor progress with iPhone app, weekly emails and detailed dashboards
Multiply Fractions by Whole Number- 4th Grade Math
Once students are familiar with multiplying unit fractions by a whole, they can extend this understanding to multiplying any fraction by a whole. For example, to multiply n x a/b, students can follow the following reasoning:
a/b is the same a copies of the unit fraction 1/b or a x (1//b). Therefore, n x a/b is the same as (n x a) copies of the unit fraction 1/b or (n x a)/b.
Before students begin to apply the above written method to multiply fractions to a whole, it is important that they visualize this operation using pictorial representations. Therefore, Multiply Fractions by a Whole Worksheet starts off by multiplication, using numbers lines or area models, before moving on to direct multiplication.
Common Core Alignment
4.NF.4.bUnderstand a multiple of a/b as a multiple of 1/b, and use this understanding to multiply a fraction by a whole number.