Students represent, locate, compare, order, simplify, and convert positive fractions, improper fractions, and mixed numbers, including generating equivalent forms and finding least common denominators. They add and subtract fractions and mixed numbers with like and unlike denominators, multiply fractions and mixed numbers, and divide fractions using models and reciprocals, including finding a fraction of a quantity. Students use benchmark fractions, estimation, area and number-line models, and operation reasoning to solve and check single-step and multistep fraction problems in context.