This math topic focuses on finding the missing value in fraction addition equations that involve simplifying expressions with two changed denominators. It is part of an advanced unit on mixed fraction addition and subtraction. Each question presents a different fraction addition problem where one of the addends is missing, and students must select the correct fraction from multiple choices that balances the equation. The problems require knowledge of how to find common denominators, perform addition with fractions, and simplify the results. This is a higher-level exercise aimed at improving skills in handling complex fractional arithmetic.

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