| A | B |
| fraction | number that represents parts to a while |
| numerator | top number of a fraction |
| denominator | bottom number of a fraction |
| while number | number without fractions or decimals |
| equivalent fractions | Fractions that name the same value |
| simplest form | when the numerator and denominator have no other number than 1 as a factor |
| common denominator | when the denominators in fractions are the same |
| least common denominator | least common multiple of the denominators of two or more fractions |
| improper fraction | numerator is larger than the denominator |
| proper fraction | numerator is smaller than the denominator |
| mixed number | whole number and a fraction |
| greatest common factor | the largest factor of two or more numbers |
| factor | numbers 1 - 9 |
| like fractions | fractions that have the same denominator |
| fraction in lowest terms | fractions where the numerator and denominator only have one as a factor |