# Learning Gym: Intermediate Math: Adding and Subtracting Fractions

Intermediate Math: Adding and Subtracting Fractions

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Introduction

 Concept/Skill Sample Learn Zillion Khan Academy Breakthrough to Math, Level 2, Book 2 Foundations Mathematics Number Power 2 Breakthrough to Math, Workbook WorkWise: Math at Work What does it mean to add and subtract fractions? 5/12 - 3/12 = 2/12 means that something is broken up into 12 parts.  You start out with 5 and when you take 3 away you are left with only two parts out of twelve. Add fractions by joining parts: Video Adding Fractions with Like Denominators 142 Extend understanding of addition and subtraction to include fractions: Video Subtracting Fractions with Like Denominators

Problem Solving

 Concept/Skill Sample Learn Zillion Khan Academy Breakthrough to Math, Level 2, Book 2 Foundations Mathematics Number Power 2 Breakthrough to Math, Workbook WorkWise: Math at Work Addition Word Problems with Fractions A recipe asks for 3/4 cup of chopped tomatoes and 3/8 cup of diced tomatoes.  How much tomatoes are in the recipe all together? Insect Olympics Video, Instructions, and Answers (Click 'Next' at the bottom after each part) Adding fractions word problem: Paint 23-24 30 Adding fractions word problem: lizard Subtraction Word Problems with Fractions If you have 3/4 of a pizza and your friend eats 3/8, how much pizza is left? Insect Olympics Video, Instructions, and Answers (Click 'Next' at the bottom after each part) Subtracting fractions word problem: piano 23-24 37 43: Exercise 4 Subtracting fractions word problem: tomatoes

Calculations

Problem Solving Post-Test