Unit 2 - Number and Operations - Fractions (Addition and Subtraction)

Chapter 3: Fractions and Mixed Numbers


Multiple - the product of two whole numbers


Least Common Multiple (LCM) - the least number that is a multiple of each of two (or more) whole numbers


Least Common Denominator (LCD) - the least common denominators of two or more fractions


Equivalent Fractions - fractions that represent the same number or quantity.


Benchmarks - number that are easier to work with and to picture than others


Division Expression - an expression that contains only numbers and the division symbol


Mixed Number - a number that consists of a whole number and a fraction.


**Add and subtract unlike fractions and mixed numbers by rewriting them with like denominators.