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Simplifying Fractions Ms. Mangan Grade 4
What does it mean to simplify? Simplifying (or reducing) fractions means to make the fraction as simple as possible.
What does it mean to simplify? **Notice how the pizza left behind covers the same amount of space in all three pictures:           4/8       ==>                      2/4 	                 ==> 	     1/2 So even though the look fractions are different they are all equal  OR equivalent (cover the same amount of space)
OK! But, how do I simplify fractions?  STEP 1:Find the Greatest Common Factor (GCF) of the numerator (top) and denominator (bottom).    ** Factors are all the numbers that can fit into the number evenly.               EX.       8             8 = 1, 2, 4, 8             12          12 =  1, 2, 3, 4, 6, 12 Which BIGGEST factor do 8 and 12 share?
STEP 2:  Take the GCF and divide it by the numerator and denominator of your fraction.                                               ÷ 4 8  2                                12            =             3 ÷ 4
Helpful Videos  http://www.youtube.com/watch?v=8JrORrjqLWs http://www.youtube.com/watch?v=kU2xUdGoloo
More Practice!!!  http://www.funbrain.com/fract/index.html http://www.homeschoolmath.net/online/fractions.php http://www.learningplanet.com/sam/ff/index.asp http://www.coolmath4kids.com/fractions/

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Simplfying fractions

  • 1. Simplifying Fractions Ms. Mangan Grade 4
  • 2. What does it mean to simplify? Simplifying (or reducing) fractions means to make the fraction as simple as possible.
  • 3. What does it mean to simplify? **Notice how the pizza left behind covers the same amount of space in all three pictures: 4/8 ==> 2/4 ==> 1/2 So even though the look fractions are different they are all equal OR equivalent (cover the same amount of space)
  • 4. OK! But, how do I simplify fractions? STEP 1:Find the Greatest Common Factor (GCF) of the numerator (top) and denominator (bottom). ** Factors are all the numbers that can fit into the number evenly. EX. 8 8 = 1, 2, 4, 8 12 12 = 1, 2, 3, 4, 6, 12 Which BIGGEST factor do 8 and 12 share?
  • 5. STEP 2: Take the GCF and divide it by the numerator and denominator of your fraction. ÷ 4 8 2 12 = 3 ÷ 4
  • 6. Helpful Videos  http://www.youtube.com/watch?v=8JrORrjqLWs http://www.youtube.com/watch?v=kU2xUdGoloo
  • 7. More Practice!!! http://www.funbrain.com/fract/index.html http://www.homeschoolmath.net/online/fractions.php http://www.learningplanet.com/sam/ff/index.asp http://www.coolmath4kids.com/fractions/