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MALT©2006 Maths/Fractions Slide Show : Lesson 6 Fractions Lesson 6 Adding Fractions Part 1

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MALT©2006 Maths/Fractions Slide Show : Lesson 6 WALT : add fractions of the same denominator

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MALT©2006 Maths/Fractions Slide Show : Lesson 6 WALT : add fractions of the same denominator

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Read aloud this sum

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The fractions have the same denominator eighths

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Three eighths add two eighths equals five eighths. eighths

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Three eighths add two eighths equals five eighths. eighths 5858

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Four sevenths add two sevenths equals six fourteenths Is this correct ? Who can explain why its wrong ?

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Its wrong because sevenths are being added So the answer must be in sevenths.

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Four sevenths add two sevenths equals six sevenths The answer must be in sevenths.

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O.K. some for you to try. You can discuss these with a friend. Thinking time starts now !

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The answers

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Read aloud this sum 1

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These fractions can be added because they have the same denominator 1 fifths

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So think about it like this…. 1 One whole…………… add one fifth …………… add three fifths …………… equals

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So think about it like this…. 1 One whole…………… add one fifth …………… add three fifths …………… equals One and four fifths

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O.K. some for you to try. You can discuss these with a friend. Thinking time starts now !

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The answers

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Yes we can because they are both eighths. eighths How about these factions. Can we add these together ?

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How many eighths altogether ? 10 8

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How many eighths altogether ? 10 8 This is the right answer but it is written as an improper fraction.

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What is ten eighths as a mixed number ? 10 8 This is the right answer but it is written as an improper fraction.

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We change this improper fraction into a mixed number.

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We then simplify this fraction to get this answer.

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Any questions or comments about this bit ?

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Any questions or comments about this bit ?

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Eighths, how many ?

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Eighths, how many ? ten

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Or see them as one whole and two eighths.

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Or see them as one whole and two eighths.

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Any questions or comments about this bit ?

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equals

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O.K. some for you to try. You can discuss these with a friend. Thinking time starts now !

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Here come the answers !

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O.K. the answers

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MALT©2007 Maths/Fractions Slide Show : Lesson 6 end of slideshow

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MALT©2007 Maths/Fractions Slide Show : Lesson 6 follow up tasks textbook page 40 symmetry games card games WALT : add fractions of the same denominator.

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