Solve word problems involving addition and subtraction of fractions referring to the same whole and having like denominators.

Number and Operations-Fractions

Build fractions from unit fractions by applying and extending previous understandings of operations on whole numbers (limited to denominators 2, 3, 4, 5, 6, 8, 10, 12, and 100).

Understand a fraction π/π with π > 1 as a sum of unit fractions (1/π).