- The
**unit**is whatever is being. - The
**denominator**is the number that says how manytheis split into. - The word "denominator" literally means
— it gives the parts their. - Mathematically, breaking a unit into some number of parts is
. - Some unit parts have special names:
, not seconds, and, not fourths.

Example | Unit | Denom. | Part | 1/denom. unit = part |
---|---|---|---|---|

A quarter of a gallon is a quart. | ||||

1/4·12 = 3 | ||||

Nine is a sixth of fifty four. | ||||

A quart can be broken down into four cups. |

- Write "1/3 gallon" in words.
- Write "a fifth of a pie" in math symbols.
- Write "1/4·24" in words.
- Write "an eighth of forty eight" in math symbols.