12 terms

math voc chapter 9

common factor
is a number that is a factor of two or more numbers.
greatest common factor or GCF
the greatest of the common factors of two or more numbers
when a number , like 3, has exactly two factors.
when a number, like 4, has more than two factors, .
prime factorization
when you can write every composite number as a product of prime numbers.
Equivalent fractions
fractions that have the same value.
simplest form
when the GCF of the numerator and denominator is 1.
is the product of the number and any whole number.
common multiple
a whole number that is a multiple of two or more whole numbers.
least common multiple (LCM)
is the least multiple, other than 0 , common to sets of multiples.
common denominator
of two or more fractions is a number that is a multiple of the denominators of the fractions.
least common denominator
the least common multiple of the denominators , to compare fractions.