| denominator | The bottom number of a fraction that tells how many equal parts are in the whole. |
| improper fraction | A fraction in which the numerator is equal to or greater than the denominator. |
| mixed number | An expression in which a whole number is combined with a proper fraction. For example 5 is a mixed number. |
| numerator | The top number of a fraction that tells how many parts of a whole are being represented. |
| proper fraction | A fraction in which the numerator is less than the denominator. |