fractions by brenda langley fractions b can b can be whole numbers be parts parts of awhole number b...
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FractionsFractions
ByByBrenda Langley
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FractionFractionss Can be Can be whole numberswhole numbers Can be Can be partsparts of of aa whole number whole number Can be Can be addedadded Can be Can be SubtractedSubtracted Can be Can be multipliedmultiplied Can be Can be DividedDivided
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• Fractions consist of two numbers. The top number is called the . The bottom number is called the
• numerator
denominator
FractionsFractions
numerator
denominator.
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Adding FractionsAdding 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
*simplify the Fraction
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Subtracting FractionsSubtracting 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
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Multiplying FractionsMultiplying 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
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Dividing FractionsDividing FractionsTo 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
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CreditsCredits
http://www.aaamath.com/http://www.aaamath.com/grade6.html June 19, 2002grade6.html June 19, 2002