5.NF.1 - Add and Subtract Fractions with Unlike Denominators (Singapore Math)

In this Common Core math video, Mr. Almeida explains how to add or subtract fractions with unlike denominators or different denominators. To add or subtract, you must have the same units (denominations or denominators). He illustrates Common Core math standard 5.NF.1 in a pictorial way with a model, which calls for a student to add and subtract fractions with unlike denominators. This also develops conceptual understanding, while exercising Mathematical Practice 4, which states: "Model with mathematics."