| A | B |
| bar notation | in repeating, the line or bar placed over the digits that repeat |
| common denominator | a common multiple of the denominators of two or more fractions |
| equivalent fractions | fractions that have the same value. 2/3 and 4/6 are equivalent fractions |
| factor tree | a diagram showing the prime factorization of a number |
| greatest common factor | the greatest of the common factors of two or more numbers |
| least common denominator | the least common multiple of the denominators of two or more fractions |
| least common multiple | the least of the common multiples of two or more numbers. The LCM of 2 and 3 is 6 |
| multiple | the product of a number and any whole number |
| percent | a ratio that compares a number to 100 |