| A | B |
|---|
| numerator | the number above the fraction bar |
| denominator | the number below the fraction bar |
| proper fraction | if the numerator is less than the denominator |
| improper fraction | if the numerator is greater than the denominator |
| mixed number | a combination of whole numbers and fractions |
| factor | a number that divides evenly into another number without a remainder |
| product | the answer to a multiplication problem |
| prime | a number is prime if it has only one and itself as factors |
| whole number | {1, 2, 3, 4, 5 . . . } |
| fractions | a part of a whole |
| composite numbers | a number that has at least one factor other than itself and 1 |
| lowest terms | a fraction is in it's lowest terms when there are no common factors in the numerator and denominator |
| prime factors | numbers whose factors are all prime |
| LCD (least common denominator) | the smallest expression that is divisible by all the denominators |
| sum | the answer to an addition problem |
| quotient | the answer to a division problem |
| difference | the answer to a subtraction problem |
