Loading presentation...

Present Remotely

Send the link below via email or IM

Copy

Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

DeleteCancel

Adding and Subtracting Algebraic Fractions

No description
by

Mr Mattock

on 27 February 2018

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Adding and Subtracting Algebraic Fractions

Adding and Subtracting
Algebraic Fractions

Starter
Calculate the following:

1 1 1 2 3 1 3 3 3 4
4 3 4 3 4 6 4 5 4 5


Marco says " + = + = ". Explain how you could
Activity
Examples
L.O. - To combine fractions through addition and subtraction.
1 1 2 3 5
6 4 12 12 24
show Marco he is wrong, without giving the correct answer.
a) + b) + c) + d) - e) -
Starter
Calculate the following:

1 1 1 2 3 1 3 3 3 4
4 3 4 3 4 5 4 5 4 5


Marco says " + = + = ". Explain how you could
1 1 2 3 5
6 4 12 12 24
show Marco he is wrong, without giving the correct answer.
a) + b) + c) - d) - e) -
7
12
11
12
11
20
3
20
1
20
-
is greater than , and you can't add a positive number to and
get smaller.
1
4
5
24
1
4
Examples
x 1
x + 1
x x

x
+
=
2
2

3x

x(x - 5)

3x + x - 5x

x - 2x
x - 5

x - 5

x - 5

x - 5
2
2
+
= =
3 -2
1
x - y x - y

x - y
+
=
Activity
Examples
Examples
x(x + 1) x - 1
x + x - x + 1

x + 1
(1-x)(1+x) 1 - x

1 - x

1 - x

2
2
2
2
2
-
= =

(x+1)(x-1)

x(x-2)

x - 1 - x + 2x
(x+2)(x-2)(x-1)

(x+2)(x-1)(x-2)

(x+2)(x-1)(x-2)

2x-1
(x+2)(x-2)(x-1)
-
= =
2
2
2x x+1 x-1

2x+2

2(x+1)

2
x -1 x -1 x -1

x - 1

(x-1)(x+1)

x - 1
+

-
= = =

1

3

x+3 - 3(x+1)

-2x
(x+1)(x+2) (x+2)(x+3)

(x+1)(x+2)(x+3)

(x+1)(x+2)(x+3)
+
= =
Activity Answers
Activity Answers
Activities
Activity
Answers

Key
Examples

Worked
Example

Worked
Example
Full transcript