Algebraic Fractions

1
Algebraic Fractions

• Multiplying and
• Dividing

2
What is to be learned?

• How to multiply and divide algebraic fractions.

3
?

• Easier than adding or subtracting!
• (honest!)

4
?

• Denominators do not need to be the same

5

• 3 X t
• r e
• (top X top)
• (bottom X bottom)
• Yes it is that easy!!!!!!!!!!!!!!!!!!!!!!!!!

3t

re
6
6g

• 3 X 2g
• g e
• 6
• e

ge
7
Alg Fractions - Multiplying

• Denominators do not need to be the same
• Top X Top
• Bottom X Bottom
• May need to simplify

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6eg

• 2e 3g
• g m
• 6e
• m
• Tension Time
• 4 t

X

gm
Not a fraction!!!!
4t
X

e
1
e
Putting a number over 1 to make it a fraction is
a quality tactic!
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Dividing

• 3 g
• r a
• 3
• r

?
?
a
3a

X
g
rg
10
Alg Fractions - Dividing

• Turn the second fraction upside down (invert)
  and multiply

11

• a r
• t 7
• a
• t

?
?
7
7a
X

r
tr