MathsheetsMake a worksheet →4.NF.B.3
Add and subtract fractions with the same denominator, including mixed numbers.
Worksheets for this standard 3 topics
The standard, officially
Understand a fraction a/b with a > 1 as a sum of fractions 1/b. *Grade 4 expectations in this domain are limited to fractions with denominators 2, 3, 4, 5, 6, 8, 10, 12, and 100.
This standard has parts
a
Understand addition and subtraction of fractions as joining and separating parts referring to the same whole.4.NF.B.3a
b
Decompose a fraction into a sum of fractions with the same denominator in more than one way, recording each decomposition by an equation. Justify decompositions, e.g., by using a visual fraction model. Examples: 3/8 = 1/8 + 1/8 + 1/8; 3/8 = 1/8 + 2/8; 2 1/8 = 1 + 1 + 1/8 = 8/8 + 8/8 + 1/8.4.NF.B.3b
c
Add and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction.4.NF.B.3c
d
Solve word problems involving addition and subtraction of fractions referring to the same whole and having like denominators, e.g., by using visual fraction models and equations to represent the problem.4.NF.B.3d
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