| A | B |
| factor | a number that divides into another number evenly |
| greatest common factor | the largest number that divides into each number |
| numerator | top number of the fraction |
| denominator | bottom number of the fraction |
| mixed number | a fraction that has a whole number and a fraction |
| improper fraction | the numerator is larger than the bottom |
| proper fraction | a fraction where the numerator is less than the denominator |
| place value | the digit at each place refers to a speific unit |
| expanded form | to name the unit at each of the digit's place |