When adding or subtracting fractions, you need to look at the denominator. If the denominator is the same, then you can just add or subtract the numerator. If the denominator is different, then ...

Rise and Shine 3rd-5th Math Lesson: 2021 ATOY Susanna Post- Adding & Subtracting Fractions. Have you ever tried to add or subtract fractions that have different denominators?

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In adding and subtracting fractions with unlike denominators, you have to get a least common denominator which is exactly like the least common multiple it just so happens to be in the denominator.

Teach your children 4th grade math skills like fractions, multiplication and division. In fourth grade, students learn to solve multi-step word problems and deepen their understanding of fractions.

Fractions are so challenging in part because they don’t operate in the same way that whole numbers do, said Nancy C. Jordan, a professor of learning sciences at the University of Delaware.