Solves Routine and Non-routine Problems Involving Addition or Subtraction of Fractions I Lesson After going through this lesson, you are expected to solve routine and non-routine problems involving addition and subtraction of frac- tions using appropriate problem-solving strategies and tools. Learning Task 1. Find the sum or difference. Express each answer in lowest term. Write your answer in your notebook. 10 - 5 40 10 12 28 28 56 28 4 2 8 = 8 - + 12 8 24 ola 1 2 12 = 18 + 10 28 28 16 18 12 18 15 27 10 36 D​