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Solve problems involving addition and subtraction of fractions, including those with unrelated denominators (ACMNA153)

[/title][fusion_text]LO: To add or subtract fractions with unrelated denominators.

Know:

how to add/subtract numbers

Understand:

that the addition of fractions makes the fractions larger
that the subtraction of fractions makes the fractions smaller
that when adding/subtracting fractions, you have to keep the denominator the same. If they are different you have to make them the same prior to proceeding.

Do:

I can add and subtract fractions with different/unrelated denominators

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Visual Representations

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Notes

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Adding/Subtracting Fractions with Unrelated Denominators

When adding fractions with the different/unrelated denominators, you have to make the denominators the same before proceeding.

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When subtracting fractions with the different/unrelated denominators, you have to make the denominators the same before proceeding.

Butterfly Method

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Teaching Ideas

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Adding/Subtracting Fractions Videos

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Textbook Questions

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My Maths 7

Exercise 2C pg. 79 Q. 3-4, 6-9

My Maths 8

Exercise 1D pg. 23 Q. 1

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