# Fractions - PowerPoint PPT Presentation

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## Fractions

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### The bottom number is called the numerator denominator Adding Fractions To add two fractions with the same denominator *add the numerators *place that sum ... – PowerPoint PPT presentation

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Title: Fractions

1
Fractions
Brenda Langley
• By

2
Fractions
• Can be whole numbers
• Can be parts of a whole number
• Can be Subtracted
• Can be multiplied
• Can be Divided

3
Fractions
• Fractions consist of two numbers. The top number
is called the . The bottom
number is called the
• numerator denominator

numerator
denominator.
4
• 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
• simplify the Fraction
• To add two fractions with the same denominator
• add the numerators place that sum over
the common denominator

5
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
• Simplify the Fraction

6
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

7
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

8
Credits