North Carolina Standard Course of Study
NC.4.NF. Number and Operations – Fractions
Extend understanding of fractions.
NC.4.NF.1. Explain why a fraction is equivalent to another fraction by using area and length fraction models, with attention to how the number and size of the parts differ even though the two fractions themselves are the same size.
NC.4.NF.2. Compare two fractions with different numerators and different denominators, using the denominators 2, 3, 4, 5, 6, 8, 10, 12, and 100. Recognize that comparisons are valid only when the two fractions refer to the same whole. Record the results of comparisons with symbols >, =, or <, and justify the conclusions by:
NC.4.NF.2.a. Reasoning about their size and using area and length models.
NC.4.NF.2.c. Comparing common numerator or common denominators.
Understand decimal notation for fractions, and compare decimal fractions.
NC.4.NF.6. Use decimal notation to represent fractions.
NC.4.NF.6.b. Use equivalent fractions to add two fractions with denominators of 10 or 100.