OAS 4.N.3.5 (Oklahoma, 4th Grade): "Use models to add and subtract fractions with like denominators." The worksheets below practice this standard. Each one is a free printable PDF with an answer key, comes in multiple versions, and can also be assigned digitally - no login or account needed.
Numbers & Operations (N)4.N.3 Represent and compare fractions and decimals in real-world and mathematical situations; use place value to understand decimal quantities.4.N.3.5Use models to add and subtract fractions with like denominators.