This Problem Set is a part of the Lesson 12, Unit 4, Grade 5. In this lesson, students continue applying knowledge of fraction and whole number multiplication in context. They will continue to use tape diagrams to model multi-step problems requiring the use of addition, subtraction, and multiplication of fractions. For example, they will determine the fraction of games won, as well as the number of times Katy was the catcher, given that the baseball team played 32 games and lost 8 and Katy was the catcher in 5/8 of the winning games and 1/4 of the losing games.