| A | B |
| dividend | In division, the number that is being divided. |
| divisor | In division, the number that divides into another. |
| quotient | The result of dividing one number by another number. |
| remainder | The amount left over when one number is divided by another number. |
| parentheses | Grouping symbols used to tell which part of an expression should be calculated first. |
| fraction | A fraction is a way to show part of a whole. A number written with the bottom part (the denominator) telling you how many parts the whole is divided into, and the top part (the numerator) telling how many you have. |
| common denominator | Any number except for zero that is a multiple of the denominators of two or more fractions. |
| denominator | The number below the line in a fraction. |
| equivalent fractions | Fractions that have different denominators but name the same amount. |
| simplest form | A fraction less than 1 is in simplest form if there is no other number than 1 that can be evenly divided into the numerator and denominator. |
| mixed number | A number that is written using a whole number and a fraction. |
| improper fraction | A fraction whose numerator is greater than or equal to its denominator. |
| numerator | The number above the line in a fraction. |