| common denominator | a number that is a multiple of all of the denominators in a group of fractions |
| Distributive Property | states that the product of a number and a sum equals the sum of the individual products of the number and the addends: for all real numbers a, b, and c, a(b + c) = ab + ac |
| multi-step equation | an equation that requires more than one step to solve |
| variable | a symbol that represents an unknown value |