Fractions

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Fractions
Greatest Common Factor Simplest Form
By Rosi Barron
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GCF (Greatest Common Factor) is the largest
factor that can be divided into both the
numerator the denominator.
A fraction is in SIMPLEST FORM when the GCF of
the numerator and denominator is the number 1.
Follow these steps
Step 1 Find the GCF of 8 and 12. Factors of 8 -
1, 2, 4, 8 Factors of 12 - 1, 2, 3, 4, 6, 12 The
GCF is 4 -----------
Step 2 Divide the numerator denominator by the
GCF. 8 4 2 12 4 3
The GCF of 2 3 is 1.
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Find the GCF for each of these fractions and then
express them in SIMPLEST FORM.
Use the 2-step process dont forget to think!!!
12 16 30 18 15 32 40 45
Do this in your journal ---gt
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Find the Greatest Common Factor.
12 1, 2, 3, 4, 6, 12 15 1, 3, 5, 15 16 1, 2,
4, 8, 16 32 1, 2, 4, 8, 16, 32 30 1, 2, 3, 5,
6, 10, 15, 30 40 1, 2, 4, 5, 8, 10, 20, 40 18
1, 2, 3, 6, 9, 18 45 1, 3, 5, 9, 15, 45
GCF 3
STEP 1
GCF 16
GCF 10
GCF 9
Place these in your journal. Go to step
2-------------------gt
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Divide the numerator denominator by the GCF.
12 3 4 4 15 3 5 5 16 16
1 1 32 16 2 2 30 10 3 3 40
10 4 4 18 9 2 2 45 9 5 5
Simplest Form
STEP 2
Simplest Form
Simplest Form
Simplest Form
Is this what you got? Check your
answers. -------gt
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12 4 15 5 16 1 32
2 30 3 40 4 18 2 45
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Check Your Answers
FINAL ANSWER
Simply Fantastic!!