1) The document provides notes on adding and subtracting fractions, including how to find a common denominator when the denominators are different.
2) It includes fraction word problems involving adding and subtracting fractions in various contexts like baking, yard work, gardening, and more. Students are instructed to solve the problems and post their answers.
3) Key concepts covered are finding common denominators, adding and subtracting fractions with the same or different denominators, and applying these skills to solve multi-step word problems.
2. FRACTION: HOW TO ADD?? When the denominators are the same… We have a rectangle that is cut into 4 pieces... Each piece is and 2 pieces are If we add , that would be… 4 4 + = 1 4 2 4 1 2 + = 3 4
3. When the denominators are different… We need to find least common denominator (LCD) For example, The LCD for 2 and 3 is 6… Change : Change :
4. When the denominators are the same… We have a rectangle that is cut into 6 pieces... Each piece is . So, HOW TO SUBTRACT?? (5 pieces) Take away 2 pieces, So, (3 pieces are left) 1 6 5 6 - 2 6 5 6 = 5 6 - 2 6 = 3 6
6. FRACTIONS TASK : PROBLEM SOLVING (ADDING & SUBSTRACTING) Instruction: Answer the problem solving questions and show the working steps. Students have to post their answers on teacher’s Wikispace, ‘mathsforfun’, at the discussion section.
