Grade 4 · Number and Operations—Fractions

CCSS.MATH.CONTENT.4.NF.B.4a

Understand a fraction a/b as a multiple of 1/b.

Read this standard on the official Common Core site

Lessons that teach this standard

• What Is a Fraction? Equal Parts of a Whole

  What the top and bottom numbers mean, why the parts must be equal, how a fraction is built from copies of a unit fraction, and when a fraction equals a whole number.