When adding or subtracting fractions, an answer greater than one can be expressed as an improper fraction or the equivalent mixed number (e.g., 3/5 + 4/5 = 7/5 = 1 2/5).
Lessons for this standard
Resources cannot be aligned to this standard, browse sub-standards to find lessons.
Similar standards in other grades
Fractions having like denominators have the same meaning as fractions having common denominators.
Solve single-step practical problems involving multiplication of a whole number, limited to 12 or less, and a proper fraction (e.g., 6 × 1/3, 1/4 × 8, 9 × 2/3), with models. The denominator will be a factor of the whole number and answers should be expressed in simplest form. (b)
Solve single-step and multistep practical problems involving addition and subtraction with mixed numbers having like and unlike denominators, with and without regrouping. Denominators in the problems should be limited to 12 or less, and answers should be expressed in simplest form.
Add and subtract fractions (proper or improper) and/or mixed numbers, having like and unlike denominators limited to 2, 3, 4, 5, 6, 8, 10, and 12, and simplify the resulting fraction. (Subtraction with fractions will be limited to problems that do not require regrouping). (b)
Add and subtract with fractions having unlike denominators whose denominators are limited to 2, 3, 4, 5, 6, 8, 10, and 12, and simplify the resulting fraction using common multiples and factors.