| A | B |
| fraction | a number that names a part of a whole |
| numerator | the top number of a fraction |
| denominator | the bottom number of a fraction |
| proper fraction | a fraction in which the numerator is less than the denominator |
| improper fraction | a fraction in which the numerator is larger than or equal to the denominator |
| mixed number | a number with a whole number and a fraction |
| equivalent fractions | fractions with different numerators and denominators that name the same amount |
| lowest terms | when the GCF of the numerator and denominator are 1 |
| like fractions | fractions with the same denominators |
| unlike fractions | fractions with different denominators |
| average | a number that tells you something about a group of numbers |