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Basic Math Sec. 2.1

Understanding Fractions

AB
The word "fraction" is similar to the wordfracture (something being broken)
A fraction is the ratio ofa part to the whole
Numeratortop of a fraction
Denominatorbottom of a fraction
The top of a fraction representsthe parts we are interested in
The bottom of a fraction representsthe total number of parts
The fraction bar indicates the operation ofdivision
Any number divided by itself equals1
Any number divided by 1 equalsthe same number
Zero divided by any number iszero
Any number divided by zero isundefined
A way to represent parts of a wholefraction
Where is the denominator located?DOWN at the bottom of the fraction
Zero may never beon the bottom of a fraction


Math 044 Instructor
Ivy Tech Community College

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