**Important Chapter Vocabulary**1.

**Mixed Number;**An amount given as a whole number and a fraction.

2.

**Unit Fraction;**A fraction that has a numerator of one.

3.

**Associative Property of Addition;**The property that states that when the grouping of addends is changed, the sum is the same.

4.

**Commutative Property of Addition;**The property that states that when the order of two or more addends is changed, the sum is the same.

5.

**Denominator;**The part of the fraction below the line, which tells how many equal parts there are in the whole or in a group.

6.

**Fraction;**A number that names part of a whole or part of a group

7.

**Numerator;**The part of a fraction above the line, which tells how many parts are being counted.

8.

**Simplest Form;**A fraction in which the numerator and denominator have only 1 as a common factor.