Common Core · Grade 4
4.NF.B.3.B
Grade 4 — Decompose a fraction, and convert between mixed numbers and improper fractions.
A note on this mapping: The Common Core never asks for "lowest terms" as a goal in itself — simplifying is treated as one direction of the equivalence in 4.NF.A.1.
The skill that covers it
What a student should be able to do
- Name the fraction shown by a diagram or a number line point.
- Generate equivalent fractions by multiplying or dividing top and bottom.
- Simplify a fraction to lowest terms using the greatest common factor.
- Convert between improper fractions and mixed numbers.