# 5th - math chapter 3 vocabulary

## 22 terms

### multiple

counting by numbers. Example: the multiples of 6 are: 6, 12, 18, 24......

### least common multiple

The smallest multiple that two or more numbers have in common

### least common denominator

The least common multiple of the denominators of two or more fractions.

### equivalent fraction

A fraction that has the same value as another fraction EXAMPLE: ½ = 2/4

### mixed number

a whole number and a fractional part; EXAMPLE: 1 ¼ or 4 ½ or 7¾

the numerators of these fractions are the same, so only the numerators are added: EX: ¼ + ¼ = 2/4

### simplest form

when the GCF of the numerator and denominator is 1

### unlike fractions

fractions with different denominators; EX: ½ + ¼ (the denominators are different)

### prime

a number that has no factor but itself and 1

### composite number

a whole number that has more than two factors & 1 cannot be one of the factors

### Multiples of 6 =

6, 12, 18, 24, 30, 36, 42, . . . .

### multiples of 5 =

5, 10, 15, 20, 25, 30, 35, . . . .

1, 2, 3, 6

### multiples of 4 =

4, 8, 12, 16, 20, 24, 28, 32, . . .

1, 5

1 , 2, 4

1, 2, 4, 8, 16

2/4 + ¼ = 3/4

### ¾ + ½ =

¾ + 2/4 = 5/4 = 5÷4 = 1¼

### 1/5 + 1/3 =

3/15 + 5/15 = 8/15

2/4 = ½

¼