This topic focuses on practicing fraction subtraction by finding the lowest common denominator (LCD) between pairs of fractions. Each problem presents two fractions and requires identifying the LCD to facilitate their subtraction. The problems are part of an introduction to fraction addition and subtraction, and the target skill is mainly on handling fractions with one denominator changed for subtraction operations. The questions are designed with multiple-choice answers, from which the correct LCD must be selected.

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