# Math Ch. 5 Vocabulary

## 17 terms

### bar notation

Indicates that a number repeats forever. A bar is written over the digits that repeat.

### common denominator

a common multiple of the denominators of two or more fractions.

### composite number

a whole number greater than 1 that has more than two factors.

### equivalent Fractions

Fractions that have the same value.

### factor Tree

A diagram showing the prime factorization of a number. The factors branch out from the previous factors until all of the factors are prime numbers.

### 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.

### multiple

The product of a number and any whole number.

### percent

A ratio that compares a number to 100.

### prime factorization

Expressing a composite number as a product of prime numbers.

### prime number

A whole number greater than 1 that has exactly two factors, 1 and itself.

### ratio

A comparison of two numbers by division

### rational number

Numbers that can be written as fractions, including termanating and repeating decimals

### repeating decimal

A decimal whose digits repeat in groups of one or more.

### simplest form

A fraction is in simplest form when the GCF of the numerator and denominator is 1.

### terminating decimal

A decimal whose digits end.