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

MALT©2006 Maths/Fractions Slide Show : Lesson 6 WALT : add fractions of the same denominator. 1 4 1 4 + MALT©2006 Maths/Fractions Slide Show : Lesson 6

MALT©2006 Maths/Fractions Slide Show : Lesson 6 WALT : add fractions of the same denominator. 1 5 3 5 + MALT©2006 Maths/Fractions Slide Show : Lesson 6

3 8 2 8 + Read aloud this sum

3 8 2 8 + The fractions have the same denominator eighths

3 8 2 8 + Three eighths add two eighths equals five eighths. eighths

eighths 3 8 2 8 5 8 Three eighths add two eighths equals five eighths. + Three eighths add two eighths equals five eighths. eighths

4 7 2 7 6 14 Four sevenths add two sevenths equals six fourteenths. + Four sevenths add two sevenths equals six fourteenths. Is this correct ? Who can explain why it’s wrong ?

4 7 2 7 6 14 It’s wrong because sevenths are being added. + It’s wrong because sevenths are being added. So the answer must be in sevenths.

4 7 2 7 6 7 Four sevenths add two sevenths equals six sevenths. + Four sevenths add two sevenths equals six sevenths. The answer must be in sevenths.

You can discuss these with a friend. O.K. some for you to try. You can discuss these with a friend. Thinking time starts now ! + 3 8 8 + 1 7 7 2 + 5 9 9 3 + 2 6 6

The answers. 7 8 5 7 + 3 8 8 + 1 7 7 7 9 5 6 2 + 5 9 9 3 + 2 6 6

1 1 5 3 5 + Read aloud this sum

1 denominator fifths 1 5 3 5 These fractions can be added + fifths These fractions can be added because they have the same denominator

1 1 5 3 5 So think about it like this…. One whole…………… add + So think about it like this…. One whole…………… add one fifth …………… add three fifths …………… equals

1 1 One and four fifths 1 5 3 5 4 5 So think about it like this…. + So think about it like this…. One and four fifths One whole…………… add one fifth …………… add three fifths …………… equals

1 1 1 2 O.K. some for you to try. You can discuss these with a friend. Thinking time starts now ! 1 + 3 8 8 1 + 1 7 7 1 2 + 5 9 9 2 3 + 2 6 6

The answers 1 7 8 1 + 3 8 8 1 + 1 7 7 1 5 7 1 2 + 5 9 9 1 2 3 + 2 6 6 2 5 6 7 9

eighths 7 3 8 8 How about these factions. Can we add these together ? + How about these factions. Can we add these together ? Yes we can because they are both eighths. eighths

7 8 3 8 + How many eighths altogether ? 10 8

7 3 8 8 10 8 How many eighths altogether ? + This is the right answer but it is written as an improper fraction.

7 8 3 8 10 8 What is ten eighths as a mixed number? + This is the right answer but it is written as an improper fraction. + What is ten eighths as a mixed number?

7 8 1 3 8 10 8 2 8 + We change this improper fraction into a mixed number.

7 8 1 1 3 8 10 8 2 8 1 4 + We then simplify this fraction to get this answer.

7 8 1 1 3 8 10 8 2 8 1 4 + Any questions or comments about this bit ?

7 8 1 1 3 8 10 8 2 8 1 4 + Any questions or comments about this bit ?

7 8 1 1 3 8 10 8 2 8 1 4 + Eighths, how many ?

7 8 1 1 3 8 10 8 2 8 1 4 + Eighths, how many ? ten

7 8 1 1 3 8 10 8 2 8 1 4 + Or see them as one whole and two eighths.

7 8 1 1 3 8 10 8 2 8 1 4 + Or see them as one whole and two eighths.

7 8 1 1 3 8 10 8 2 8 1 4 + Any questions or comments about this bit ?

7 8 1 1 3 8 10 8 2 8 1 4 + equals

1 O.K. some for you to try. You can discuss these with a friend. Thinking time starts now ! + 3 6 6 + 5 7 7 1 4 + 7 9 9 3 + 2 4 4

Here come the answers !

O.K. the answers. 1 1 + 3 6 6 1 6 + 5 7 7 2 7 1 1 4 + 7 9 9 1 2 9 3 + 2 4 4 1 4

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

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