Reducing Fractions

Factor A number that is multiplied by another number to find a product. Factors of 24 are (1,2, 3, 4, 6, 8, 12, 24).

What are the factors of 9? Factors of 9 are 1, 3 and 9. Factors of 9 are 1, 3 and 9. 1 x 9 = x 3 =

What are the factors of 10? Factors of 10 (1, 2, 5, 10). Factors of 10 (1, 2, 5, 10). 1 x 10 = 10 2 x 5 =

What are the factors of 7? Factors of 7 (1, 7). 1 x 7 =

What are the factors of 56? Factors of 56 (1, 2, 4, 7, 8, 14, 28, 56). 1 x 56 = 56 2 x 28 = x 14 = x 8 =

Common Factor When two numbers have the same factor it is called a common factor. A common factor factor of 12 and 6 is 3.

Name a Common Factor of 9 and 27? 1, 3, 9

Name a Common Factor of 4 and 8? 1, 2, 4

1, 2, 4

Name a Common Factor of 15 and 30? 1, 3, 5, 15

Name a Common Factor of 12 and 48? 1, 2, 3, 4, 6, 12

Name a Common Factor of 9 and 21? 1, 3, 9,

Name a Common Factor of 10 and 25? 1, 5, 10

Name a Common Factor of 3 and 4? 1

Simplest Form When the only common factor of the numerator and denominator is 1, the fraction is in simplest form ÷ 1 1 =

Greatest Common Factor The greatest common factor is the largest factor between two numbers. 12 = 1, 2, 3, 4, 6, = 1, 2, 3, 6, 9, 18

What is the Greatest Common Factor? 8 = 1, 2, 4, 8 12 = 1, 2, 3, 4, 6, 12

What is the Greatest Common Factor? 8 = 1, 2, 4, 8 14 = 1, 2, 7,14

What is the Greatest Common Factor? 6 = 1, 2, 3, 6 18 = 1, 2, 3, 6, 9, 15

What is the Greatest Common Factor? 6 = 1, 2, 3, 6 12 = 1, 2, 3, 4, 6, 12

What is the Greatest Common Factor? 8 = 1, 2, 4, 8 16 = 1, 2, 4, 8, 16

What is the Greatest Common Factor? 8 = 1, 2, 4, 8 10 = 1, 2, 5, 10

What is the Greatest Common Factor? 3 = 1, 3 6 = 1, 2, 3, 6

What is the Greatest Common Factor? 4 = 1, 2, 4 6 = 1, 2, 3, 6

What is the Greatest Common Factor? 7 = 1, 7, 21 = 1, 3, 7, 21

What is the Greatest Common Factor? 15 = 1, 3, 5, = 1, 2, 3, 8, 12, 24

How to Find the Simplest Form of a Fraction Find the greatest common factor of the numerator and the denominator and divide both the numerator and the denominator by that number ÷ 6 6 =

Simplify or Reduce This Fraction ÷ 6 6 =

Simplify or Reduce This Fraction ÷ 3 3 =

Simplify or Reduce This Fraction ÷ 4 4 =

Simplify or Reduce This Fraction ÷ 5 5 =

Simplify or Reduce This Fraction ÷ 2 2 =

Simplify or Reduce This Fraction ÷ 4 4 =

Simplify or Reduce This Fraction ÷ 3 3 =

Simplify or Reduce This Fraction ÷ 2 2 =

÷ 2 2 =

÷ 3 3 =

÷ 2 2 =