Adding fractions (different denominators)

Add and subtract fractions with denominators that are multiples of the same number by finding a common denominator

Usually learned at ages 9–10

Builds on: Equivalent fractions (age 9+), Fraction Addition Concepts

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On the map from: Marble Skill Taxonomy (v1), © Generative Spark, Inc. (withmarble.com), text CC BY-SA 4.0, database ODbL 1.0: https://github.com/withmarbleapp/os-taxonomy