Chapter 8

Question 1

Fractions

Answer 1

A number that represents part of a whole or a part of a set.

Question 2

Numerator

Answer 2

The top number in a fraction (1/4 the 1 in 1/4 is the numerator). The part of the fraction that tells the number of parts you have.

Question 3

Denominator

Answer 3

The denominator is the bottom number in a fraction (for example in the fraction 1/4, the denominator is the 4). It represents the number parts of a whole.

Question 4

Common factors

Answer 4

A number that is a factor of two or more numbers.

20: 1, 2, 4, 5, 10, 20
10: 1, 2, 5, 10
The common factors are 1, 2, 5, and 10 because both numbers have them.

Question 5

Greatest common factors

Answer 5

The greatest of the common factors of two or more numbers.
20: 1, 2, 4, 5, 10, 20
10: 1, 2, 5, 10
In this example, the greatest common factor is 10 because that is the highest factor for both that is in common.

Question 6

Simplest form

Answer 6

A fraction in which the GCF of the numerator and the denominator is 1.

Question 7

LCM (Least Common Multiple)

Answer 7

The smallest whole number greater than 0 that is a common multiple of each of two or more numbers

Question 8

Equivalent fractions

Answer 8

Fractions that have the same value

Question 9

Common multiples

Answer 9

A whole number that is a multiple of two or more numbers

Question 10

Multiples

Answer 10

A multiple of a number is the product of that number and any whole number

Question 11

LCD (Least Common Denominator

Answer 11

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