4.2 Adding and subtracting fractions and mixed numbers with different signs
In this lesson, we look at adding and subtracting fractions and mixed numbers, when they can be either positive or negative!
Here is the introductory film that we watched in class on positive and negative fractions
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Watch any of these videos if you need to revise the concepts that you did last year about fractions. You will need to know them!
This video revises improper fractions and mixed numbers, and how to convert from one into the other.
This video goes through how to add fractions (proper and improper) by forming a common denominator
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This video goes through what improper fractions look like on a number line.
This video goes through a really cool way of adding mixed numbers which can be alot faster
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This video goes through what the least common denominator is and how to find it.
This video goes through how to subtract mixed numbers
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This video revises how to reduce fractions into simplest form and equivalent fractions
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INSTRUCTIONS: Read this!
ADDITION and SUBTRACTION OF SIGNED FRACTIONS
You are now going to learn about how to add and subtract positive and negative fractions! You will need to combine your knowledge of fractions with your knowledge for adding and subtracting integers
ADDITION and SUBTRACTION OF SIGNED FRACTIONS
You are now going to learn about how to add and subtract positive and negative fractions! You will need to combine your knowledge of fractions with your knowledge for adding and subtracting integers
INSTRUCTIONS: Watch some examples from all the videos below. You MUST watch the third one in full.
This video is about adding signed fractions
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This video is about subtracting signed fractions
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This video is about adding signed mixed numbers
Graphing Inequalities
INSTRUCTIONS:
Watch this video which explains the last part of Ch 4.2, how to graph inequalities on the number line. |
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