| A | B |
| denominator | The bottom number (part) of a fraction |
| fraction | Two numbers separated by a fraction bar |
| numerator | The top number (part) of a fraction |
| term | In fractions, the word to describe the numerator and denominator |
| proper fraction | A fraction where the numerator is less than the denominator |
| improper fraction | A fraction greater than 1 where the numerator is greater than the denominator |
| mixed number | A fraction greater than 1 where there is a whole number and a proper fraction |
| equal fractions | Fractions that have the same value |
| cross products | When you multiply the numerator of one fraction by the denominator of the other |
| reducing | Finding an equal fraction with a smaller numerator and denominator |
| lowest terms | A fraction is reduced to lowest terms where there is no number other than 1 that will divide evenly into both the numerator and denominator |
| common denominators | When the denominators of two or more fractions are the same |
| like fractions | Fractions that have the same denominators |
| unlike fractions | Fractions with different denominators |
| lowest common denominator | The lowest common multiple of the denominators of several fractions |
| multiples | i.e multiples of three are 3, 6, 9, 12, ... |
| ratio | The comparison of two numbers. |
| unit rate | The price (rate) per item |
| proportion | A comparison of ratios |
| cross product rule | To find the missing number in a proportion, cross multiply and divide the product by the third number |
| rate | A way of comparing two quantities |
| inverse | opposite |
| fraction bar | line that separates the numerator and the denominator |
| canceling | process of simplyifying fractions prior to multiplying |