Transcript Simplifying Fractions

Fractions
Grade 5
Lesson Objectives



6.B.1.c Identify the greatest common factor
6.A.1.c Identify and determine equivalent
forms of proper fractions
3.A.1.a Use technology tools, including
software and hardware, from a range of
teacher-selected options to learn a new content
or reinforce skills
Unitedstreaming Video Clip

There is a great video clip that can be used
with this lesson. To use it:
1.
Log into Unitedstreaming
–
2.
Do a search for this Movie:
–
3.
www.unitedstreaming.com
Zany World of Basic Math, The, Module 7: Fraction
Basics . Standard Deviants
Then choose this clip:
–
parts of a fraction
What is a Fraction?
Zany World of Basic Math, The, Module 7: Fraction Basics . Standard Deviants. 2001.
unitedstreaming. 19 June 2007 <http://www.unitedstreaming.com/>
Factors

Numbers that divide
evenly into another.
Factors of 24 are:
1, 2, 3, 4, 6, 8, 12, and 24.
1
x 24
2 x 12
3 x 8,
4x6
Greatest Common Factor

The greatest common factor is
the largest factor between two
numbers.
12 = 1, 2, 3, 4, 6, 12
18 = 1, 2, 3, 6, 9, 18
What is the Greatest
Common Factor?
6 = 1, 2, 3, 6
18 = 1, 2, 3, 6, 9, 15
Unitedstreaming Video Clip

There is a great video clip that can be used
with this lesson. To use it:
1.
Log into Unitedstreaming
–
2.
Do a search for this Movie:
–
3.
www.unitedstreaming.com
Zany World of Basic Math, The, Module 7: Fraction
Basics . Standard Deviants
Then choose this clip:
–
reducing fractions
Simplify Fractions
Zany World of Basic Math, The, Module 7: Fraction Basics . Standard Deviants. 2001.
unitedstreaming. 19 June 2007 <http://www.unitedstreaming.com/>
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.
12
6
2
÷
=
18
6
3
Simplify or Reduce This
Fraction
9
3
3
÷ =
21 3
7
Simplify or Reduce This
Fraction
14
7
2
÷ =
35 7
5
Simplify or Reduce This
Fraction
3
3
1
÷ =
12 3
4
Simplify or Reduce This
Fraction
9
3
3
÷ =
24 3
8
Simplify or Reduce This
Fraction
4
4
1
÷ =
28 4
7
Simplify or Reduce This
Fraction
15 5
3
÷ =
20 5
4
Simplify or Reduce This
Fraction
9
3
3
÷ =
12 3
4
Exit ticket

On a half sheet of paper, simplify the
following fractions. Show all of your work.
8
24
12
36