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19 Cards in this Set
 Front
 Back
numerator

how many of the parts being considered


denominator

number of equal parts in the whole


proper fraction

a fraction whose numerator is less than its denominator


improper fraction

a fraction whose numerator is greater than its denominator


equivalent fractions

fractions that represent the same portion of a whole


fundamental property of fractions

if we multiply or divide both the n. and the d. by the same nonzero number the result is an equivalent fraction


composite number

a natural number greater than 1 that is not prime


prime factorization

when a composite number is written as a product of prime numbers


factor

any number that divides a number evenly (remainder of 0)


divisibility tests

2 if last digit is 0,2,4,6,8
3 if the sum of digits is divisible by 3 5 if its last digit is 0 or 5 10 if its last digit is 0 

simplest form, lowest terms

when the n. and d. have no common factors other than 1


simplifying the fraction

writing a fraction in its lowest terms


reciprocals

2 numbers are reciprocals of each other if their product is 1


like fractions

have the same or a common denominator


unlike fractions

have different denominators


common denominator

finding the denominator that both d. can divide equally into


LCD/LCM LOWEST COMMON DENOMINATOR/LOWEST COMMON MULTIPLE

the smallest positive number divisible by all the denominators in the list


complex fractions

fraction whose numerator or demoninator or both contain fractions


mixed number

contains a whole number and a proper fraction
