This topic focuses on practicing fractional subtraction by finding the lowest common denominator (LCD). It involves determining the appropriate LCD for pairs of fractions so that they can be subtracted. This skill is part of a broader unit on mixed advanced fraction addition and subtraction. Each problem presents a pair of fractions, and the learner is required to select the LCD from multiple choices provided. This topic is well-suited for learners looking to strengthen their understanding and application of common denominators in fraction operations.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.