Common Core 4.NF.B.3

Common Core · 4th Grade

A fraction with a numerator above 1 is a sum of unit fractions, such as 3/5 = 1/5 + 1/5 + 1/5.

4.NF.B.3aUnderstand adding and subtracting fractions as joining and taking away parts of the same whole.
4.NF.B.3bBreak a fraction apart into same-denominator fractions in different ways, like 5/6 = 2/6 + 3/6 = 1/6 + 4/6, and write the equations.
4.NF.B.3cAdd and subtract mixed numbers with the same denominator, for example by changing them to fractions or by using properties of operations.
4.NF.B.3dSolve story problems that add or subtract fractions of the same whole with like denominators, using fraction models and equations.

Grade: 4th Grade
Domain: Number & Operations—Fractions

Printables

5 page set

Decomposing Fractions

3rd–4th Grade

5 page set

Mixed Numbers and Improper Fractions

3rd–4th Grade

Standards are described in our own words. Read the official Common Core document.

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