Transcript Fractions - Texarkana Independent School District

Fractions
By
Brenda Langley
Fractions
 Can be whole numbers
 Can be parts of a whole number
 Can be added
 Can be Subtracted
 Can be multiplied
 Can be Divided
Fractions
• Fractions consist of two
numbers. The top
number isnumerator
called the
. The bottom number is
denominator.
called the
Adding Fractions

To add two
fractions with the
same denominator
*add the numerators
*place that sum over
the common
denominator
To add fractions with
different
denominators:
*find the Least
Common
Denominator (LCD) of
the fractions
*rename the fractions
to have the LCD
*add the numerators
of the fractions
Subtracting Fractions
To subtract two fractions
with the same
denominator
*subtract the numerators
*place that difference over the
common denominator.
To Subtract Fractions with
different denominators:
*Find the Lowest Common
Denominator (LCD) of the fractions
*Rename the fractions to have the
LCD
*Subtract the numerators of the
fractions The difference will be the
numerator and the LCD will be the
denominator of the answer.
*Simplify the Fraction
Multiplying Fractions

To Multiply Fractions:
 Multiply the
numerators of the
fractions
 Multiply the
denominators of the
fractions
 Place the product of
the numerators over
the product of the
denominators
 Simplify the Fraction
Dividing Fractions
To Divide Fractions:
 Invert (i.e. turn over)
the denominator
fraction and multiply
the fractions
 Multiply the
numerators of the
fractions
 Multiply the
denominators of the
fractions
 Place the product of
the numerators over
the product of the
denominators
 Simplify the Fraction
Credits
http://www.aaamath.com/grade6.ht
ml June 19, 2002