Transcript All About Fractions

All About Fractions
By:
Filomena Borrero
Belkis Guzman
Juan Mesa
Cecilia Nuevo
Table of Contents
• Parts of a fraction
– Numerator
– Denominator
• Types of fractions
– Proper fraction
– Improper fraction
– Mixed number
Table of contents (cont.)
• Changing from improper fraction to mixed
number
• Changing from mixed number to improper
fraction
• Equivalent fractions
• Changing the fractions to decimals
• Changing fractions to percents
Table of Contents (cont.)
• Basic Operations
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Addition
Subtraction
Multiplication
Division
Parts of a fraction
•
There are two parts to a fraction:
5
6
•
The top one is called the numerator. The numerator is the number that
represents the amount that is shaded.
•
The bottom one is called the denominator. The denominator is the number that
represents the amount of parts that the figure is divided into.
Types of fractions
•
There are three types of fractions:
•
1) proper fraction
–
A proper fraction by definition is one where the numerator is smaller than the denominator.
3/4
•
2) improper fraction
–
An improper fraction by definition is one where the numerator is bigger than the denominator.
7/3
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3) mixed number.
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3) A mixed number by definition is one where there is a whole number and proper fraction.
2 1/2
Changing from improper fraction
to mixed number
•
Divide the denominator into the numerator. The quotient becomes the whole
number, the remainder becomes the numerator and the denominator remains
the same.
5/4
Changing from mixed number to
improper fraction
Multiply the denominator with the whole number and add
the numerator. Then place your answer over the
denominator.
6 ¼ = 4 x 6 + 1 = 25/4
Equivalent Fractions
Two fractions are equivalent when they have the same value. In
order to see if they have the same value divide both the numerator
and the denominator by the same number. In the case below both
the numerator and the denominator were divided by 4.
4/8 = 1/2